Cita APA

Azar, B. S., & Betty Schrampfer Azar; Donald A. Azar. (1999). Fundamentals of english grammar: Workbook. City London: Prentice Hall Regents.

Citación estilo Chicago

Azar, Betty Schrampfer, y Betty Schrampfer Azar; Donald A. Azar. Fundamentals of English Grammar: Workbook. City London: Prentice Hall Regents, 1999.

Cita MLA

Azar, Betty Schrampfer, y Betty Schrampfer Azar; Donald A. Azar. Fundamentals of English Grammar: Workbook. City London: Prentice Hall Regents, 1999.