Dyfyniad APA

Hall, D. (1988). Writing Well (6th ed.). Scott, Foresman, &Co..

Dyfyniad Arddull Chicago

Hall, Donald. Writing Well. 6th ed. Glenview, Ill.: Scott, Foresman, &Co., 1988.

Dyfyniad MLA

Hall, Donald. Writing Well. 6th ed. Scott, Foresman, &Co., 1988.

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