Dyfyniad APA

(1978). American mass media: Industries and issues. Random House.

Dyfyniad Arddull Chicago

American Mass Media: Industries and Issues. New York: Random House, 1978.

Dyfyniad MLA

American Mass Media: Industries and Issues. Random House, 1978.

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