APA (7th ed.) Citation

British Museum (Natural History). (1981). Origin of species. British Museum (Natural History) Cambridge University Press.

Chicago Style (17th ed.) Citation

British Museum (Natural History). Origin of Species. London Cambridge [England] New York, N.Y: British Museum (Natural History) Cambridge University Press, 1981.

MLA (9th ed.) Citation

British Museum (Natural History). Origin of Species. British Museum (Natural History) Cambridge University Press, 1981.