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