APA (7th ed.) Zitazioa
Ferguson, G. O. (1916). The Psychology of the negro: An experimental study.
Chicago Style (17th ed.) Zitazioa
Ferguson, George Oscar. The Psychology of the Negro: An Experimental Study. New York, 1916.
MLA (9th ed.) Zitazioa
Ferguson, George Oscar. The Psychology of the Negro: An Experimental Study. 1916.
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