Kotler, P. (1991). Marketing management: Analysis, planning, implementation and control (7th ed.). Prentice hall of india pvt. ltd.
Chicago-tyylinen lähdeviittausKotler, Philip. Marketing Management: Analysis, Planning, Implementation and Control. 7th ed. New Delhi: Prentice hall of india pvt. ltd, 1991.
MLA-viiteKotler, Philip. Marketing Management: Analysis, Planning, Implementation and Control. 7th ed. Prentice hall of india pvt. ltd, 1991.
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