Cita APA

Betty Schrampfer Azar. (1980). Understanding and using English grammar. New Jersey: Prentice-Hall.

Chicago Style Citation

Betty Schrampfer Azar. Understanding and Using English Grammar. New Jersey: Prentice-Hall, 1980.

Cita MLA

Betty Schrampfer Azar. Understanding and Using English Grammar. New Jersey: Prentice-Hall, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.