APA Style

Azar, B, S. (1989). Understanding and Using English Grammar Second Edition / Betty Schrampfer Azar (Ed.2). New Jersey: Prentice Hall Regents.

MLA Style

Azar, Betty, Schrampfer. "Understanding and Using English Grammar Second Edition / Betty Schrampfer Azar". Ed.2 New Jersey: Prentice Hall Regents, 1989. Text.