Παραπομπή APA

Schultz, G. (1963). Glaciers and the ice age: Earth and its inhabitants during the pleistocene. New York: Holt, Rinehart and Winston.

Παραπομπή Chicago Style

Schultz, Gwen. Glaciers and the Ice Age: Earth and Its Inhabitants During the Pleistocene. New York: Holt, Rinehart and Winston, 1963.

Παραπομπή MLA

Schultz, Gwen. Glaciers and the Ice Age: Earth and Its Inhabitants During the Pleistocene. New York: Holt, Rinehart and Winston, 1963.

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