APA (7th ed.) Zitazioa
Harris, M. (1974). Cows, pigs, wars, & witches: The riddles of culture. Vintage Books.
Chicago Style (17th ed.) Zitazioa
Harris, Marvin. Cows, Pigs, Wars, & Witches: The Riddles of Culture. New York: Vintage Books, 1974.
MLA (9th ed.) Zitazioa
Harris, Marvin. Cows, Pigs, Wars, & Witches: The Riddles of Culture. Vintage Books, 1974.
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