Cita APA (7th ed.)
Langacker, R. W. (2009). Investigations in cognitive grammar. Mouton de Gruyter.
Cita Chicago (17th ed.)
Langacker, Ronald W. Investigations in Cognitive Grammar. Berlin ; New York: Mouton de Gruyter, 2009.
Cita MLA (9th ed.)
Langacker, Ronald W. Investigations in Cognitive Grammar. Mouton de Gruyter, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.