Roberts, P. O., & Dewees, D. N. (1971). Economic analysis for transport choice; A Charles River Associates research study: By Paul O. Roberts and Donald N. Dewees with contributions by Gerald Kraft, Mahlon Straszheim. D.C. Heath and Co.
Chicago Style (17. basım) AtıfRoberts, Paul O., ve Donald N. Dewees. Economic Analysis for Transport Choice; A Charles River Associates Research Study: By Paul O. Roberts and Donald N. Dewees with Contributions by Gerald Kraft, Mahlon Straszheim. Lexington, Mass.: D.C. Heath and Co, 1971.
MLA (9th ed.) AtıfRoberts, Paul O., ve Donald N. Dewees. Economic Analysis for Transport Choice; A Charles River Associates Research Study: By Paul O. Roberts and Donald N. Dewees with Contributions by Gerald Kraft, Mahlon Straszheim. D.C. Heath and Co, 1971.