APA (7th ed.) Citation

Azar, B. S. (1989). Understanding and using English grammar (2nd ed.). Prentice Hall Regents.

Chicago Style (17th ed.) Citation

Azar, Betty Schrampfer. Understanding and Using English Grammar. 2nd ed. Englewood Cliffs, N.J.: Prentice Hall Regents, 1989.

MLA (8th ed.) Citation

Azar, Betty Schrampfer. Understanding and Using English Grammar. 2nd ed. Prentice Hall Regents, 1989.