Sampson, R. J., & Farris, M. T. (1979). Domestic Transportation: Practice, Theory, and Policy (4th ed.). Houghton Mifflin.
Citace podle Chicago (17th ed.)Sampson, Roy Johnson, a Martin Theodore Farris. Domestic Transportation: Practice, Theory, and Policy. 4th ed. Boston: Houghton Mifflin, 1979.
Citace podle MLA (9th ed.)Sampson, Roy Johnson, a Martin Theodore Farris. Domestic Transportation: Practice, Theory, and Policy. 4th ed. Houghton Mifflin, 1979.
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