Azar, B. S. (1989). Understanding and using English grammar (2nd ed.). Prentice Hall Regents.
Citación estilo ChicagoAzar, Betty Schrampfer. Understanding and Using English Grammar. 2nd ed. Englewood Cliffs, NJ: Prentice Hall Regents, 1989.
Cita MLAAzar, Betty Schrampfer. Understanding and Using English Grammar. 2nd ed. Prentice Hall Regents, 1989.
Warning: These citations may not always be 100% accurate.