McKenzie, G. D., & Utgard, R. O. Man and his physical environment: Readings in environmental geology.
Cita Chicago Style (17a ed.)McKenzie, Garry D., y Russell O. Utgard. Man and His Physical Environment: Readings in Environmental Geology.
Cita MLA (9a ed.)McKenzie, Garry D., y Russell O. Utgard. Man and His Physical Environment: Readings in Environmental Geology.
Precaución: Estas citas no son 100% exactas.