Huxley, T. H., & Knight, D. (2003). Man's place in nature. Routledge.
Lua i Stíl Chicago (17ú heag.)Huxley, Thomas Henry, agus David Knight. Man's Place in Nature. London: Routledge, 2003.
Lua MLA (9ú heag.)Huxley, Thomas Henry, agus David Knight. Man's Place in Nature. Routledge, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.