APA (7th ed.) Zitazioa
Quammen, D. (2002). The Origin of species: Descent of a text, with modification. Library of Congress.
Chicago Style (17th ed.) Zitazioa
Quammen, David. The Origin of Species: Descent of a Text, with Modification. Washington, DC: Library of Congress, 2002.
MLA (9th ed.) Zitazioa
Quammen, David. The Origin of Species: Descent of a Text, with Modification. Library of Congress, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.