APA (7th ed.) Zitazioa
Clark, R. E. D. (1950). Darwin: Before and after: The story of evolution. Paternoster Pr.
Chicago Style (17th ed.) Zitazioa
Clark, Robert Edward David. Darwin: Before and After: The Story of Evolution. London: Paternoster Pr, 1950.
MLA (9th ed.) Zitazioa
Clark, Robert Edward David. Darwin: Before and After: The Story of Evolution. Paternoster Pr, 1950.
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