Betty Schrampfer Azar. (2000). Understanding and using English grammar; Workbook. New York: Longman.
Čikaški stil citiranjaBetty Schrampfer Azar. Understanding and Using English Grammar; Workbook. New York: Longman, 2000.
MLA način citiranjaBetty Schrampfer Azar. Understanding and Using English Grammar; Workbook. New York: Longman, 2000.
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