APA Style

Azar, B, S. (2009). Understanding & Using Engl Grammar Internat'l SB w/AudioCD; w/o AK (4th Edition) . : Pearson ESL.

MLA Style

Azar, Betty, Schrampfer. "Understanding & Using Engl Grammar Internat'l SB w/AudioCD; w/o AK (4th Edition)". : Pearson ESL, 2009. Text.