Most national advertising is done without justification. It is merely presumed to pay. A little test might show a way to multiply returns
My Life in Advertising and Scientific Advertising (ed. McGraw Hill Professional, 1966) - ISBN: 9780071784801
Most national advertising is done without justification. It is merely presumed to pay. A little test might show a way to multiply returns
My Life in Advertising and Scientific Advertising (ed. McGraw Hill Professional, 1966) - ISBN: 9780071784801