APA (7th ed.) Citation

Botha, R. P., & Knight, C. (2009). The Cradle of language. Oxford University Press.

Chicago Style (17th ed.) Citation

Botha, Rudolf P., and Chris Knight. The Cradle of Language. Oxford: Oxford University Press, 2009.

MLA (9th ed.) Citation

Botha, Rudolf P., and Chris Knight. The Cradle of Language. Oxford University Press, 2009.

Warning: These citations may not always be 100% accurate.