Gaya APA

Belch, G, E., belch, M, A. (2001). Advertising and promotion : an integrated marketing communications perspective ed.5 (5). Boston: Mc Graw Hill.

Gaya MLA

Belch, George, E., belch, Michael, A. "Advertising and promotion : an integrated marketing communications perspective ed.5". 5 Boston: Mc Graw Hill, 2001. Text.