Gaya APA

Azar, B, S. (1989). Understanding Andusing English Grammar (scond Edition 1989). New Jersey: Prentice Hall Regents Englewood Cliffs, New Jersey 0763.

Gaya MLA

Azar, Betty, Schrampfer. "Understanding Andusing English Grammar". scond Edition 1989 New Jersey: Prentice Hall Regents Englewood Cliffs, New Jersey 0763, 1989. Text.