Não informado. (1976). Behavioral Ecology and Sociobiology. Springer Verlag.
Lua i Stíl Chicago (17ú heag.)Não informado. Behavioral Ecology and Sociobiology. New York: Springer Verlag, 1976.
Lua MLA (8ú heag.)Não informado. Behavioral Ecology and Sociobiology. Springer Verlag, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.