Langacker, R. W., & Langacker, R. W. (2013). Essentials of cognitive grammar. Oxford, New York: Oxford University Press.
Chicago Style CitationLangacker, Ronald W., and Ronald W. Langacker. Essentials of Cognitive Grammar. Oxford, New York: Oxford University Press, 2013.
MLA CitationLangacker, Ronald W., and Ronald W. Langacker. Essentials of Cognitive Grammar. Oxford, New York: Oxford University Press, 2013.
Warning: These citations may not always be 100% accurate.