APA (7th ed.) Zitazioa

Azar, B. S. (2003). Fundamentals of english grammar: With answer key (3rd ed.). Longman.

Chicago Style (17th ed.) Zitazioa

Azar, Betty Schrampfer. Fundamentals of English Grammar: With Answer Key. 3rd ed. White Plains: Longman, 2003.

MLA (9th ed.) Zitazioa

Azar, Betty Schrampfer. Fundamentals of English Grammar: With Answer Key. 3rd ed. Longman, 2003.