Dyfyniad APA

The Trade Mark Reporter (1979) Vol.69. The United States Trade Mark Association.

Dyfyniad Arddull Chicago

The Trade Mark Reporter (1979) Vol.69. New York: The United States Trade Mark Association.

Dyfyniad MLA

The Trade Mark Reporter (1979) Vol.69. The United States Trade Mark Association.

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