Bigham, T. C., & Roberts, M. J. (1952). Transportation: Principles and problems (2. ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationBigham, Truman C., and Merrill J. Roberts. Transportation: Principles and Problems. 2. ed. New York u.a: McGraw-Hill, 1952.
MLA (9th ed.) CitationBigham, Truman C., and Merrill J. Roberts. Transportation: Principles and Problems. 2. ed. McGraw-Hill, 1952.
Warning: These citations may not always be 100% accurate.