Rees, P. A. (2013). Dictionary of zoo biology and animal management: A guide to terminology used in zoo biology, animal welfare, wildlife conservation and livestock production. Wiley-Blackwell.

Rees, Paul A. Dictionary of Zoo Biology and Animal Management: A Guide to Terminology Used in Zoo Biology, Animal Welfare, Wildlife Conservation and Livestock Production. Chichester, West Sussex, U.K.: Wiley-Blackwell, 2013.

Rees, Paul A. Dictionary of Zoo Biology and Animal Management: A Guide to Terminology Used in Zoo Biology, Animal Welfare, Wildlife Conservation and Livestock Production. Wiley-Blackwell, 2013.