Lambert, D., & Diagram Group. (1987). The field guide to early man. Facts on File.
芝加哥风格引文Lambert, David, 与 Diagram Group. The Field Guide to Early Man. New York: Facts on File, 1987.
MLA引文Lambert, David, 与 Diagram Group. The Field Guide to Early Man. Facts on File, 1987.
警告：这些引文格式不一定是100％准确.