Lua APA (7ú heag.)

Kotler, P. (1983). Principles of marketing (2nd ed.). Prentice-Hall.

Lua i Stíl Chicago (17ú heag.)

Kotler, Philip. Principles of Marketing. 2nd ed. London: Prentice-Hall, 1983.

Lua MLA (9ú heag.)

Kotler, Philip. Principles of Marketing. 2nd ed. Prentice-Hall, 1983.

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