Tohutoro APA (7th ed.)
Ribeiro, D., & Meggers, B. J. (1968). The civilizational process.
Tohutoru Kātū Chicago (17th ed.)
Ribeiro, Darcy, me Betty J. Meggers. The Civilizational Process. 1968.
Tohutoro MLA (9th ed.)
Ribeiro, Darcy, me Betty J. Meggers. The Civilizational Process. 1968.
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