Παραπομπή APA

Thomas, W. L. (1960). Man's role in changing the face of the earth. Chicago: The University of Chicago Press.

Παραπομπή Chicago Style

Thomas, William L. Man's Role in Changing the Face of the Earth. Chicago: The University of Chicago Press, 1960.

Παραπομπή MLA

Thomas, William L. Man's Role in Changing the Face of the Earth. Chicago: The University of Chicago Press, 1960.

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