APA (7th ed.) Zitazioa

Soper, E. (1993). Philosophy of biology. Univ Pr..

Chicago Style (17th ed.) Zitazioa

Soper, Elliott. Philosophy of Biology. Oxford: Univ Pr., 1993.

MLA (9th ed.) Zitazioa

Soper, Elliott. Philosophy of Biology. Univ Pr., 1993.