APA (7th ed.) Zitazioa
Spinden, H. J. (1951). Ancient civilizations of México and Central America.
Chicago Style (17th ed.) Zitazioa
Spinden, Herbert Joseph. Ancient Civilizations of México and Central America. New York, 1951.
MLA (9th ed.) Zitazioa
Spinden, Herbert Joseph. Ancient Civilizations of México and Central America. 1951.
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