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.