Dyfyniad APA

(1978). Encyclopedia of the Newspaper Industry. Editor & Publisher.

Dyfyniad Arddull Chicago

Encyclopedia of the Newspaper Industry. New York: Editor & Publisher, 1978.

Dyfyniad MLA

Encyclopedia of the Newspaper Industry. Editor & Publisher, 1978.

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