Παραπομπή APA

Law, I. (1986). Is your advertising budget wasted?: How to measure advertising effectiveness. London: The Economist Intelligence Unit.

Παραπομπή Chicago Style

Law, Ian. Is Your Advertising Budget Wasted?: How to Measure Advertising Effectiveness. London: The Economist Intelligence Unit, 1986.

Παραπομπή MLA

Law, Ian. Is Your Advertising Budget Wasted?: How to Measure Advertising Effectiveness. London: The Economist Intelligence Unit, 1986.

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