APA (7th ed.) Citation

Oxford University Press & Haspelmath, M.. (2005). The World atlas of language structures. Oxford University Press.

Chicago Style (17th ed.) Citation

Oxford University Press and Martin Haspelmath. The World Atlas of Language Structures. New York: Oxford University Press, 2005.

MLA (9th ed.) Citation

Oxford University Press and Martin Haspelmath. The World Atlas of Language Structures. Oxford University Press, 2005.