APA (7th ed.) Zitazioa
Langacker, R. W. (2009). Investigations in cognitive grammar. Mouton de Gruyter.
Chicago Style (17th ed.) Zitazioa
Langacker, Ronald W. Investigations in Cognitive Grammar. Berlin ; New York: Mouton de Gruyter, 2009.
MLA (9th ed.) Zitazioa
Langacker, Ronald W. Investigations in Cognitive Grammar. Mouton de Gruyter, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.