PERREAULT, W. D., CANNON, J. P., & MCCARTHY, E. J. (2012). Essentials of marketing. A marketing strategy planning approach. McGraw-Hill Book Company.
Lua i Stíl Chicago (17ú heag.)PERREAULT, William D., Joseph P. CANNON, agus E. Jerome MCCARTHY. Essentials of Marketing. A Marketing Strategy Planning Approach. McGraw-Hill Book Company, 2012.
Lua MLA (9ú heag.)PERREAULT, William D., et al. Essentials of Marketing. A Marketing Strategy Planning Approach. McGraw-Hill Book Company, 2012.
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