APA (7th ed.) Citation

Leech, G. N. (2009). Change in contemporary English: A grammatical study. Cambridge Univerisity Press.

Chicago Style (17th ed.) Citation

Leech, Geoffrey N. Change in Contemporary English: A Grammatical Study. Cambridge ; New York: Cambridge Univerisity Press, 2009.

MLA (9th ed.) Citation

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