APA aipamena

(1929). The drift of civilization. New York: Simon and Schuster, inc.

Chicago Style aipamena

The Drift of Civilization. New York: Simon and Schuster, inc, 1929.

MLA aipamena

The Drift of Civilization. New York: Simon and Schuster, inc, 1929.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.