Gaya APA

Azar, B, S. (1992). Understanding and Using English Grammar Second Edition: Betty Schramper Azar (2nd ed). New Jersey: Prentice Hall.

Gaya MLA

Azar, Betty, Schramfer. "Understanding and Using English Grammar Second Edition: Betty Schramper Azar". 2nd ed New Jersey: Prentice Hall, 1992. Text.