APA (7th ed.) Citation

Azar. (2002). Understanding and using english grammar (3rd ed.). Longman.

Chicago Style (17th ed.) Citation

Azar. Understanding and Using English Grammar. 3rd ed. New York: Longman, 2002.

MLA (8th ed.) Citation

Azar. Understanding and Using English Grammar. 3rd ed. Longman, 2002.