Gaya APA

Piercy, G, H, J, S, N. (2004). Marketing Strategy and Competitive Positioning 3rd.Ed (3rd.Ed). London: Prentice Hall.

Gaya MLA

Piercy, Graham, Hooley,, John, Saunders,, Nigel. "Marketing Strategy and Competitive Positioning 3rd.Ed". 3rd.Ed London: Prentice Hall, 2004. Text.