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