APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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