Dyfyniad APA

Backman, J. (1967). Advertising and competition. New York University.

Dyfyniad Arddull Chicago

Backman, Jules. Advertising and Competition. New York: New York University, 1967.

Dyfyniad MLA

Backman, Jules. Advertising and Competition. New York University, 1967.

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