Azar, B. S. (1999). Understanding and using English grammar/Betty Schrampfer Azar (3rd.ed.). Longman.
Chicago Style (17th ed.) CitationAzar, Betty Schrampfer. Understanding and Using English Grammar/Betty Schrampfer Azar. 3rd.ed. New Jersey: Longman, 1999.
MLA (8th ed.) CitationAzar, Betty Schrampfer. Understanding and Using English Grammar/Betty Schrampfer Azar. 3rd.ed. Longman, 1999.
Warning: These citations may not always be 100% accurate.