Gaya APA

AZAR, B, S., A.Hagen, S. (2011). FUNDAMENTALS OF English Grammer; Internationals Edition (4 edd). New York: Pearson Education.

Gaya MLA

AZAR, Betty, S.., A.Hagen, Stacy. "FUNDAMENTALS OF English Grammer; Internationals Edition". 4 edd New York: Pearson Education, 2011. Text.