APA (7th ed.) Citation

Azar, B. S. (1989). Understanding and using english grammar. Prentice-Hall.

Chicago Style (17th ed.) Citation

Azar, Betty Schrampfer. Understanding and Using English Grammar. Prentice-Hall, 1989.

MLA (8th ed.) Citation

Azar, Betty Schrampfer. Understanding and Using English Grammar. Prentice-Hall, 1989.

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