McKenzie, G. D., & Utgard, R. O. (1972). Man and his physical environment: Readings in environmental geology. Burgess Pub. Co.
Chicago Style (17. basım) AtıfMcKenzie, Garry D., ve Russell O. Utgard. Man and His Physical Environment: Readings in Environmental Geology. Minneapolis: Burgess Pub. Co, 1972.
MLA (9th ed.) AtıfMcKenzie, Garry D., ve Russell O. Utgard. Man and His Physical Environment: Readings in Environmental Geology. Burgess Pub. Co, 1972.
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