Volpe, E. P. (1975). Man, Nature, and Society: An introduction to biology. W.M.C. Brown Company Publishers.
Lua i Stíl Chicago (17ú heag.)Volpe, E. Peter. Man, Nature, and Society: An Introduction to Biology. Dubuque, Iowa: W.M.C. Brown Company Publishers, 1975.
Lua MLA (9ú heag.)Volpe, E. Peter. Man, Nature, and Society: An Introduction to Biology. W.M.C. Brown Company Publishers, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.