Dyfyniad APA

Lambert, D., & Diagram Group. (1987). The field guide to early man. Facts on File.

Dyfyniad Arddull Chicago

Lambert, David, and Diagram Group. The Field Guide to Early Man. New York: Facts on File, 1987.

Dyfyniad MLA

Lambert, David, and Diagram Group. The Field Guide to Early Man. Facts on File, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.