Kotler, P. (1988). Marketing management: Analysis, planning, implementation and control (6ª ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip. Marketing Management: Analysis, Planning, Implementation and Control. 6ª ed. Prentice Hall, 1988.
Lua MLA (9ú heag.)Kotler, Philip. Marketing Management: Analysis, Planning, Implementation and Control. 6ª ed. Prentice Hall, 1988.
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