Wells, W. (1998). Advertising: Principles and practice (4th ed.). Prentice-Hall of India.
Παραπομπή Chicago StyleWells, William. Advertising: Principles and Practice. 4th ed. New Jersey: Prentice-Hall of India, 1998.
Παραπομπή MLAWells, William. Advertising: Principles and Practice. 4th ed. Prentice-Hall of India, 1998.
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