Thomas W. Langford, with Lawrence Murdock and Bertram Zumeta, Portrait of a Region, (Philadelphia: Pennsylvania-New Jersey-Delaware Metropolitan Project, Inc., 1961).
Thomas W. Langford, "An Area Data Service - Secondary Data Utilization Center" in: Wroe Alderson and Stanley J. Shapiro, Area Data Service Feasibility Study, (Philadelphia: University of Pennsylvania, 1962).
Thomas W. Langford and Morris R. Hamburg, Selected Methods of Analysis for Urban Economic Planning and Development in Pennsylvania: Commentary on Regional Economic Accounting Systems, Benefit-Cost Analysis, and Statistical Decision Theory, (Harrisburg: Commonwealth of Pennsylvania, Department of Internal Affairs, 1964).
Thomas W. Langford, Michael K. Evans, and Gerald G. Karaska, The Impact Upon the Tax Revenues of the City of Philadelphia and the Commonwealth of Pennsylvania Initiated by the Proposed Expansion of the General Cargo Handling Facilities of the Port of Philadelphia, (Philadelphia: City of Philadelphia, Port Division, 1964).
Thomas W. Langford, Walter Isard, and Eliahu Romanoff, Working Papers: Philadelphia Region Input-Output Study, Volumes I - IV, (Philadelphia: Regional Science Research Institute, 1967).
Thomas W. Langford, " A Proposed Model for Evaluation of the Economic Aspects of Weather Modification Programs for a System of Regions," in: W. R. D. Sewell, ed. Human Dimensions of the Atmosphere, (Washington: National Science Foundation, 1968).
Thomas W. Langford and Robert E. Coughlin, Relative Economic Effects on Penjerdel of Two Alternative Jetport Proposals in New Jersey, (Philadelphia: Committee on Regional Development, 1969).
Thomas W. Langford, Projected Economic Impacts Generated by the Proposed Petrochemical Refinery Operations at Savannah, Georgia, (Savannah: Savannah Ports Authority, 1969).
Thomas W. Langford, Economic Impact of the Frankfort Arsenal on the Philadelphia Region, (Philadelphia: City of Philadelphia, Office of the Managing Director, 1969).
Thomas W. Langford, Robert E. Coughlin, and Benjamin H. Stevens, The Economic Impact of Potential Air Transportation Congestion on the Delaware Valley Region, (Philadelphia: Committee on Regional Development, 1969).
Thomas W. Langford and Walter Isard, "Impacts of Viet Man War Expenditures on the Philadelphia Economy," Papers and Proceedings of the Regional Science Association, Volume XXIII, (1969).
Thomas W. Langford, Robert E. Coughlin, Robert C. Douglas, and Benjamin H. Stevens, Economic Impact of the Dallas-Fort Worth Regional Airport on the North-Central Texas Region in 1975, (Arlington: North-Central Texas Council of Governments, 1970).
Thomas W. Langford and Robert E. Coughlin, Report on the Baltimore Regional Input-Output Study, (Baltimore: Regional Planning Council, 1971).
Thomas W. Langford and Robert E. Coughlin, Selected Examples of the Use of the Baltimore Regional Input-Output Model, (Baltimore: Regional Planning Council, 1971).
Thomas W. Langford with C. Vincent Manoogian, A Management Overview: Criminal Justice Standards for a Non-Metropolitan Area, (Carbondale: Greater Egypt Regional Planning and Development Commission, 1977).
Thomas W. Langford, Environmental Assessment of the Areawide Waste Water Treatment and Water Quality Management Plan for Southern Illinois, (Carbondale: Greater Egypt Regional Planning and Development Commission, 1978).
Thomas W. Langford, Illinois Population: Projections to 2000, (Springfield: Task Force on the Future of Illinois, 1978).
Thomas W. Langford, Economic Activity in Illinois: A Perspective, (Springfield: Task Force on the Future of Illinois, 1978).
Thomas W. Langford, "Accommodation of Change: An Empirical View of State Government," International Congress on Applied Systems Research and Cybernetics, Acapulco, Mexico (December 1980).
Thomas W. Langford, with Elisabeth B. Langford, "State Options for Economic Development and the Prevention of Significant Deterioration of Air Quality," Mid-Continent Regional Association, Cincinnati, Ohio (1981).
Thomas W. Langford, "Illinois Demographic and Economic Projections," in: Illinois Libraries, Volume 64, Number 8 (December 1982).
Thomas W. Langford, Revenue and Expenditures of Counties Related to the Administration of Justice, (Belleville, Il.: Southwestern Illinois Law Enforcement Commission, 1984).
Thomas W. Langford, Economic Development Opportunities for Service Industries in the Evansville, Indiana Metropolitan Area, (Springfield: Langford and Associates, 1985).
Thomas W. Langford, with Carol H. Posegate, "Discovery of Expert Testimony in Employment Litigation", in Federal Discovery News, (November 2000)
Office of Planning and Analysis, Illinois Statistical Report: 1972, (Springfield: Executive Office of the Governor, 1972).
Office of Planning and Analysis, Preliminary Population Projections by County: 1970 - 2020, (Springfield: Executive Office of the Governor, 1973).
Office of Planning and Analysis, with the Illinois Board of Higher Education, Occupational Manpower Projections: 1975 - 1980, (Springfield: Executive Office of the Governor, 1973).
Illinois Bureau of the Budget, Uniform Demographic and Economic Data: Summary, (Springfield: Executive Office of the Governor, 1974).
Illinois Bureau of the Budget, Illinois Statistical Abstract: 1973, (Springfield: Executive Office of the Governor, 1974).
Illinois Bureau of the Budget, Occupational Manpower Projections: Preliminary, (Springfield: Executive Office of the Governor, 1974).
Illinois Bureau of the Budget, Occupational Manpower Projections: 1970 - 1980, Revised, (Springfield: Executive Office of the Governor, 1975).
Illinois Bureau of the Budget, Illinois Population Projections: 1970 - 2025, (Springfield: Executive Office of the Governor, 1975).
Thomas W. Langford, with David E. Scoville, Occupational Manpower Projections: 1975 - 1981, (Springfield: State of Illinois, 1976).
Thomas W. Langford, Occupational Manpower Projections: Methodology, (Springfield: State of Illinois, 1976).
Thomas W. Langford, David Beveridge, Richard Hattwick, and Norman Walzer, Occupational Manpower Projections: Local Forecasts Within a Regional Setting, (Springfield: State of Illinois, 1976).
Thomas W. Langford, Economic and Demographic Projections, Volumes I and II, (Springfield: State of Illinois, Environmental Protection Agency, 1977).
Thomas W. Langford, A Report on Planning Projections for Regional Air Quality Maintenance Studies, (Springfield: State of Illinois, Environmental Protection Agency, 1977).
Thomas W. Langford, Regional Air Quality Maintenance Planning: Employment Projections for the Chicago, Illinois Standard Metropolitan Statistical Area, 1975 - 2000, (Springfield: State of Illinois, Environmental Protection Agency, 1978).
Thomas W. Langford, with C. Vincent Manoogian, Criminal Justice Expenditures in Illinois Counties, (Chicago: State of Illinois, Illinois Law Enforcement Commission, 1979).
Thomas W. Langford, A Brief Study of Selected Economic Impacts of Proposed Surface Mine and Reclamation Activity in Know County, Illinois, (Springfield: State of Illinois, Department of Mines and Minerals, 1979).
Thomas W. Langford, with C. Vincent Manoogian, The Economic Impact of Proposed Regulations for Mandatory Deposits on Beverage Containers in Illinois, (Chicago: State of Illinois, Illinois Institute of Natural Resources, 1980).
Thomas W. Langford, with Elisabeth B. Langford, Evaluation of Increment Allocation Alternatives for the Prevention of Significant Deterioration in Illinois, (Springfield: State of Illinois, Department of Energy and Natural Resources, 1983).
Thomas W. Langford, Financial Ratio Analysis: A Preliminary Study of Hospitals in Illinois, (Springfield: State of Illinois, Illinois Health Care Cost Containment Council, 1986).
