PRIDE WILLIAM M. (1989). MARKETING: CONCEPTS AND STRATEGIES. HOUGHTON COM.
Lua i Stíl Chicago (17ú heag.)PRIDE WILLIAM M. MARKETING: CONCEPTS AND STRATEGIES. BOSTON: HOUGHTON COM, 1989.
Lua MLA (9ú heag.)PRIDE WILLIAM M. MARKETING: CONCEPTS AND STRATEGIES. HOUGHTON COM, 1989.
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