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Dyfyniad Arddull ChicagoHooley, Graham J., Nigel F. Piercy, and John A. Saunders. Marketing Strategy and Competetive Positioning. 2nd ed. London: Prentice-Hall, 1998.
Dyfyniad MLAHooley, Graham J., et al. Marketing Strategy and Competetive Positioning. 2nd ed. Prentice-Hall, 1998.
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