Dyfyniad APA

(1991). Webster's ninth new collegiate dictionary. Merriam-Webster.

Dyfyniad Arddull Chicago

Webster's Ninth New Collegiate Dictionary. .Springfield, Mass., U.S.A: Merriam-Webster, 1991.

Dyfyniad MLA

Webster's Ninth New Collegiate Dictionary. Merriam-Webster, 1991.

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