Cita APA (7a ed.)
West, R. C., & Wauchope Robert. Natural Environment and Early Cultures. University of Texas.
Cita estilo Chicago (17a ed.)
West, Robert C., y Wauchope Robert. Natural Environment and Early Cultures. Austin, EUA: University of Texas.
Cita MLA (9a ed.)
West, Robert C., y Wauchope Robert. Natural Environment and Early Cultures. University of Texas.
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