Azar, B. S. (1999). Understanding and using English grammar (3rd ed.). Prentice Hall Regents.
Citación estilo ChicagoAzar, Betty Scrampfer. Understanding and Using English Grammar. 3rd ed. Upper Saddle River, N.J: Prentice Hall Regents, 1999.
Cita MLAAzar, Betty Scrampfer. Understanding and Using English Grammar. 3rd ed. Prentice Hall Regents, 1999.
Warning: These citations may not always be 100% accurate.