Lambert, D., & Diagram Group. (1987). The field guide to early man. Facts on File.
Chicago Style (17. basım) AtıfLambert, David, ve Diagram Group. The Field Guide to Early Man. New York: Facts on File, 1987.
MLA (9th ed.) AtıfLambert, David, ve Diagram Group. The Field Guide to Early Man. Facts on File, 1987.
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