Cita APA (7th ed.)

Azar, B. S. (1999). Understanding and using English grammar (3rd ed.). Prentice Hall Regents.

Cita Chicago (17th ed.)

Azar, Betty Scrampfer. Understanding and Using English Grammar. 3rd ed. Upper Saddle River, N.J: Prentice Hall Regents, 1999.

Cita MLA (9th ed.)

Azar, Betty Scrampfer. Understanding and Using English Grammar. 3rd ed. Prentice Hall Regents, 1999.