APA (7th ed.) Citation

Thornton, I. W. B. (1971). Darwin's islands: A natural history of the Galapagos. Published for the American Museum of Natural History, the Natural History Press.

Chicago Style (17th ed.) Citation

Thornton, I. W. B. Darwin's Islands: A Natural History of the Galapagos. Garden City, N.Y.: Published for the American Museum of Natural History, the Natural History Press, 1971.

MLA (9th ed.) Citation

Thornton, I. W. B. Darwin's Islands: A Natural History of the Galapagos. Published for the American Museum of Natural History, the Natural History Press, 1971.