Cita APA

Azar, B. S. 1., & Azarm Donald A. (1990). Understanding and using English grammar (2. edition.). New Jersey: Prentice Hall, Inc..

Citación estilo Chicago

Azar, Betty Schrampfer 1941-, y Azarm Donald A. Understanding and Using English Grammar. 2. edition. New Jersey: Prentice Hall, Inc., 1990.

Cita MLA

Azar, Betty Schrampfer 1941-, y Azarm Donald A. Understanding and Using English Grammar. 2. edition. New Jersey: Prentice Hall, Inc., 1990.