Kotler, P. (1984). Marketing essentials. Prentice-Hall.
Chicago Style (17th ed.) CitationKotler, Philip. Marketing Essentials. .Englewood Cliffs, N.J: Prentice-Hall, 1984.
MLA (9th ed.) CitationKotler, Philip. Marketing Essentials. Prentice-Hall, 1984.
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