APA-čujuhus (7. p.)
West, R. C., & Wauchope Robert. Natural Environment and Early Cultures. University of Texas.
Chicago-čujuhus (17. p.)
West, Robert C., juo Wauchope Robert. Natural Environment and Early Cultures. Austin, EUA: University of Texas.
MLA-čujuhus (9. p.)
West, Robert C., juo Wauchope Robert. Natural Environment and Early Cultures. University of Texas.
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