Cita APA

Azar, B. S. (1991). Understanding and Using English Grammar. London: Prentice-Hall.

Chicago Style Citation

Azar, Betty Scrampfer. Understanding and Using English Grammar. London: Prentice-Hall, 1991.

Cita MLA

Azar, Betty Scrampfer. Understanding and Using English Grammar. London: Prentice-Hall, 1991.

Atenció: Aquestes cites poden no estar 100% correctes.