Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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