Lua APA (7ú heag.)

HOLTJE HERBERT. (1981). THEORY AND PROBLEMS OF MARKETING. MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

HOLTJE HERBERT. THEORY AND PROBLEMS OF MARKETING. MCGRAWHILL N.Y: MCGRAW-HILL, 1981.

Lua MLA (9ú heag.)

HOLTJE HERBERT. THEORY AND PROBLEMS OF MARKETING. MCGRAW-HILL, 1981.

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