APA (7th ed.) Zitazioa
Graham, B. (1986). Unto the hills. Word Books.
Chicago Style (17th ed.) Zitazioa
Graham, Billy. Unto the Hills. Waco, Tex.: Word Books, 1986.
MLA (9th ed.) Zitazioa
Graham, Billy. Unto the Hills. Word Books, 1986.
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