Broadhurst, P. L. (1963). The science of animal behaviour. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Broadhurst, P. L. The Science of Animal Behaviour. Middlesex, Eng: Penguin Books, 1963.
Lua MLA (9ú heag.)Broadhurst, P. L. The Science of Animal Behaviour. Penguin Books, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.