Gaya APA

PERREAULT, W, D., CANNON, J, P. (2012). ESSENTIALS OF MARKETING (13th). New York: MCGRAW-HILL.

Gaya MLA

PERREAULT, William, D.., CANNON, Joseph, P.. "ESSENTIALS OF MARKETING". 13th New York: MCGRAW-HILL, 2012. Text.