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, Calif: Stanford University Press, 1987.

Cita MLA (9th ed.)

Langacker, Ronald W. Foundations of Cognitive Grammar. Stanford University Press, 1987.