APA (7th ed.) Zitazioa
Eliot, C. W. (1937). Harvard classics: The origin of species. P. F. Collier & Sons.
Chicago Style (17th ed.) Zitazioa
Eliot, Charles W. Harvard Classics: The Origin of Species. New York: P. F. Collier & Sons, 1937.
MLA (9th ed.) Zitazioa
Eliot, Charles W. Harvard Classics: The Origin of Species. P. F. Collier & Sons, 1937.
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