Dyfyniad APA

Thomas register of American manufacturers. Thomas Pub. Co.

Dyfyniad Arddull Chicago

Thomas Register of American Manufacturers. New York: Thomas Pub. Co.

Dyfyniad MLA

Thomas Register of American Manufacturers. Thomas Pub. Co.

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