Azar, B. S. (2001). Understanding and Using English Grammar (3rd ed.). New York: White Plains.
Dyfyniad Arddull ChicagoAzar, Betty Schrampfer. Understanding and Using English Grammar. 3rd ed. New York: White Plains, 2001.
Dyfyniad MLAAzar, Betty Schrampfer. Understanding and Using English Grammar. 3rd ed. New York: White Plains, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.