Dyfyniad APA

(1995). A Reference Grammar For Students Of English R.a Close. Longman.

Dyfyniad Arddull Chicago

A Reference Grammar For Students Of English R.a Close. Longman, 1995.

Dyfyniad MLA

A Reference Grammar For Students Of English R.a Close. Longman, 1995.

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