Citazione Stile APA (7a Edizione)

Azar, B. S. (2000). Understanding and using english grammar: Workbook - volume b (Third edition.). Longman.

Citazione stile Chigago Style (17a edizione)

Azar, Betty Schrampfer. Understanding and Using English Grammar: Workbook - Volume B. Third edition. New York: Longman, 2000.

Citatione MLA (9a ed.)

Azar, Betty Schrampfer. Understanding and Using English Grammar: Workbook - Volume B. Third edition. Longman, 2000.