Stone, I. (1981). EL ORIGEN: Vida de Charles Darwin (1 ed.). Emece.
Chicago Style (17th ed.) CitationStone, Irving. EL ORIGEN: Vida De Charles Darwin. 1 ed. Buenos Aires: Emece, 1981.
MLA (9th ed.) CitationStone, Irving. EL ORIGEN: Vida De Charles Darwin. 1 ed. Emece, 1981.
Warning: These citations may not always be 100% accurate.