APA (7th ed.) Citation

Leech, G. N., Hundt, M., Mair, C., & Smith, N. (2009). Change in Contemporary English: A Grammatical Study. Cambridge University Press.

Chicago Style (17th ed.) Citation

Leech, Geoffrey N., Marianne Hundt, Christian Mair, and Nicholas Smith. Change in Contemporary English: A Grammatical Study. Leiden: Cambridge University Press, 2009.

MLA (8th ed.) Citation

Leech, Geoffrey N., et al. Change in Contemporary English: A Grammatical Study. Cambridge University Press, 2009.