APA (7th ed.) Zitazioa

(2019). English verbs: Total language study program. McGraw-Hill Education.

Chicago Style (17th ed.) Zitazioa

English Verbs: Total Language Study Program. New York: McGraw-Hill Education, 2019.

MLA (9th ed.) Zitazioa

English Verbs: Total Language Study Program. McGraw-Hill Education, 2019.