Cita APA

Azar, B. S., & Betty Schrampfer Azar; Donald A. Azar. (2000). Understanding and using english grammar: Workbook. Hà Nội: Thanh niên.

Citación estilo Chicago

Azar, Betty Schrampfer, y Betty Schrampfer Azar; Donald A. Azar. Understanding and Using English Grammar: Workbook. Hà Nội: Thanh niên, 2000.

Cita MLA

Azar, Betty Schrampfer, y Betty Schrampfer Azar; Donald A. Azar. Understanding and Using English Grammar: Workbook. Hà Nội: Thanh niên, 2000.