APA Citation

AZAR, & Hagen. (2011). Fundamentals of English grammar with answer key [ (4th ed.). New York: Longman.

Chicago Style Citation

AZAR, and Hagen. Fundamentals of English Grammar With Answer Key [. 4th ed. New York: Longman, 2011.

MLA Citation

AZAR, and Hagen. Fundamentals of English Grammar With Answer Key [. 4th ed. New York: Longman, 2011.

Warning: These citations may not always be 100% accurate.