Lua APA (7ú heag.)

Kotler, P. (1994). Principles of marketing / Philip Kotler, Gary Armstrong (6th ed.). Prentice-Hall.

Lua i Stíl Chicago (17ú heag.)

Kotler, Philip. Principles of Marketing / Philip Kotler, Gary Armstrong. 6th ed. Englewood Cliffs: Prentice-Hall, 1994.

Lua MLA (9ú heag.)

Kotler, Philip. Principles of Marketing / Philip Kotler, Gary Armstrong. 6th ed. Prentice-Hall, 1994.

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