APA (7th ed.) Citation

Langacker, R. W. (2013). Essentials of cognitive grammar. Oxford University Press.

Chicago Style (17th ed.) Citation

Langacker, Ronald W. Essentials of Cognitive Grammar. New York: Oxford University Press, 2013.

MLA (9th ed.) Citation

Langacker, Ronald W. Essentials of Cognitive Grammar. Oxford University Press, 2013.