Cita APA (7a ed.)
Langacker, R. W. (1987). Foundations of cognitive grammar. Stanford University Press.
Cita Chicago Style (17a ed.)
Langacker, Ronald W. Foundations of Cognitive Grammar. Stanford, California: Stanford University Press, 1987.
Cita MLA (9a ed.)
Langacker, Ronald W. Foundations of Cognitive Grammar. Stanford University Press, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.