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