APA (7th ed.) Zitazioa
Boyd, R. (2017). Approaching the world's religions. Cascade Books.
Chicago Style (17th ed.) Zitazioa
Boyd, Robert. Approaching the World's Religions. Eugene, Oregon: Cascade Books, 2017.
MLA (9th ed.) Zitazioa
Boyd, Robert. Approaching the World's Religions. Cascade Books, 2017.
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