Gaya APA

Kerin, R, A., Hartley, S, W. (2009). MARKETING; The Core (3rd). New York: MCGRAW-HILL.

Gaya MLA

Kerin, Roger, A.., Hartley, Stepen, W.. "MARKETING; The Core". 3rd New York: MCGRAW-HILL, 2009. Text.