Gaya APA

Walker, O, C., Mullins, J, W. (2011). Marketing strategy : a decision-focused approach (7th ed.) (7th Ed.). McGrawHill: .

Gaya MLA

Walker, Orville, C.., Mullins, John, W.. "Marketing strategy : a decision-focused approach (7th ed.)". 7th Ed. McGrawHill: , 2011. Text.