Lua APA (7ú heag.)

KOTLER PHILIP. (1998). MARKETING MANAGEMENT (9TH.). PRENTICE -HALL INTERNATIONAL, INC.

Lua i Stíl Chicago (17ú heag.)

KOTLER PHILIP. MARKETING MANAGEMENT. 9TH. AUSTRALIA: PRENTICE -HALL INTERNATIONAL, INC, 1998.

Lua MLA (9ú heag.)

KOTLER PHILIP. MARKETING MANAGEMENT. 9TH. PRENTICE -HALL INTERNATIONAL, INC, 1998.

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