APA (7th ed.) Zitazioa
Ferber, E. (1931). American beauty. Doubleday, Doran& company.
Chicago Style (17th ed.) Zitazioa
Ferber, Edna. American Beauty. New York: Doubleday, Doran& company, 1931.
MLA (9th ed.) Zitazioa
Ferber, Edna. American Beauty. Doubleday, Doran& company, 1931.
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