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archive.org
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Shady Solis, Ruth; Jonathan Haas; Winifred Creamer (27 de abril de 2001). «Dating Caral, a Preceramic Site in the Supe Valley on the Central Coast of Peru». Science292 (5517): 723-726. PMID11326098. doi:10.1126/science.1059519.
Shady Solis, Ruth; Jonathan Haas; Winifred Creamer (27 de abril de 2001). «Dating Caral, a Preceramic Site in the Supe Valley on the Central Coast of Peru». Science292 (5517): 723-726. PMID11326098. doi:10.1126/science.1059519.