Dyfyniad APA

Hotchkiss, G. B. (1949). Advertising copy. New York: Harper & Brothers.

Dyfyniad Arddull Chicago

Hotchkiss, George Burton. Advertising Copy. New York: Harper & Brothers, 1949.

Dyfyniad MLA

Hotchkiss, George Burton. Advertising Copy. New York: Harper & Brothers, 1949.

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