Hickman, C. P., Roberts, L. S., & Larson, A. (2000). Animal diversity (Second edition.). McGraw-Hill.

Hickman, Cleveland P., Larry S. Roberts, and Allan Larson. Animal Diversity. Second edition. Boston: McGraw-Hill, 2000.

Hickman, Cleveland P., et al. Animal Diversity. Second edition. McGraw-Hill, 2000.