Cita APA (7th ed.)
Langacker, R. W. (1987). Foundations of cognitive grammar. Stanford University Press.
Cita Chicago (17th ed.)
Langacker, Ronald W. Foundations of Cognitive Grammar. Stanford, California: Stanford University Press, 1987.
Cita MLA (9th ed.)
Langacker, Ronald W. Foundations of Cognitive Grammar. Stanford University Press, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.