Sampson, R. J., Farris, M. T., & Shrock, D. L. (1990). Domestic transportation: Practice, theory, and policy (6th ed.). Houghton Mifflin Co.
Chicago Style (17th ed.) CitationSampson, Roy J., Martin T. Farris, and David L. Shrock. Domestic Transportation: Practice, Theory, and Policy. 6th ed. Boston: Houghton Mifflin Co, 1990.
MLA (9th ed.) CitationSampson, Roy J., et al. Domestic Transportation: Practice, Theory, and Policy. 6th ed. Houghton Mifflin Co, 1990.
Warning: These citations may not always be 100% accurate.