Kotler, P., & Armstrong, G. (2008). Principles of marketing (12th internationl ed.). Pearson Prentice Hall.
Cita Chicago Style (17a ed.)Kotler, Philip, y Gary Armstrong. Principles of Marketing. 12th internationl ed. New Jersey: Pearson Prentice Hall, 2008.
Cita MLA (9a ed.)Kotler, Philip, y Gary Armstrong. Principles of Marketing. 12th internationl ed. Pearson Prentice Hall, 2008.
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