Dyfyniad APA

White, L. C. (1936). Geography: An introduction to human ecology. D. Appleton Century Company.

Dyfyniad Arddull Chicago

White, Longdon C. Geography: An Introduction to Human Ecology. New York: D. Appleton Century Company, 1936.

Dyfyniad MLA

White, Longdon C. Geography: An Introduction to Human Ecology. D. Appleton Century Company, 1936.

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