Azar, B. S. (2003). Fundamentals of English grammar: Chartbook : a reference grammar (3rd ed.). Longman.
Cita Chicago (17th ed.)Azar, Betty Schrampfer. Fundamentals of English Grammar: Chartbook : A Reference Grammar. 3rd ed. New York, NY: Longman, 2003.
Cita MLA (8th ed.)Azar, Betty Schrampfer. Fundamentals of English Grammar: Chartbook : A Reference Grammar. 3rd ed. Longman, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.