Lua APA (7ú heag.)

KOTTER PHILIP. (1987). PRINCIPLES OF MARKETING (3.). PRENTICE -HALL INTERNATIONAL, INC.

Lua i Stíl Chicago (17ú heag.)

KOTTER PHILIP. PRINCIPLES OF MARKETING. 3. NEW DELHI: PRENTICE -HALL INTERNATIONAL, INC, 1987.

Lua MLA (9ú heag.)

KOTTER PHILIP. PRINCIPLES OF MARKETING. 3. PRENTICE -HALL INTERNATIONAL, INC, 1987.

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