Sampson, R. J., & Farris, M. T. (1970). Domestic transportation: Practice, theory, and policy. Houghton Mifflin.
Chicago Style aipamenaSampson, Roy J., and Martin T. Farris. Domestic Transportation: Practice, Theory, and Policy. Boston: Houghton Mifflin, 1970.
MLA aipamenaSampson, Roy J., and Martin T. Farris. Domestic Transportation: Practice, Theory, and Policy. Houghton Mifflin, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.