Kotler, P. (1989). Principles of marketing (3rd.). Prentice Hall.
Chicago Style (17th ed.) CitationKotler, Philip. Principles of Marketing. 3rd. New Delhi: Prentice Hall, 1989.
MLA (9th ed.) CitationKotler, Philip. Principles of Marketing. 3rd. Prentice Hall, 1989.
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