APA (7th ed.) Zitazioa

Levin, B. (1993). English verb classes and alternations: A preliminary investigation. University of Chicago.

Chicago Style (17th ed.) Zitazioa

Levin, Beth. English Verb Classes and Alternations: A Preliminary Investigation. Chicago: University of Chicago, 1993.

MLA (9th ed.) Zitazioa

Levin, Beth. English Verb Classes and Alternations: A Preliminary Investigation. University of Chicago, 1993.