Dyfyniad APA

Azar, B. S. (2002). Understanding and using english grammar (3rd ed.). Pearson Education.

Dyfyniad Arddull Chicago

Azar, Betty Schrampfer. Understanding and Using English Grammar. 3rd ed. New York: Pearson Education, 2002.

Dyfyniad MLA

Azar, Betty Schrampfer. Understanding and Using English Grammar. 3rd ed. Pearson Education, 2002.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.