APA (7th ed.) Zitazioa

(1972). Man Threatened: The Nature of Man. McDougal, Littell Co..

Chicago Style (17th ed.) Zitazioa

Man Threatened: The Nature of Man. Illinois: McDougal, Littell Co., 1972.

MLA (9th ed.) Zitazioa

Man Threatened: The Nature of Man. McDougal, Littell Co., 1972.