The IPM - CC rating technique in psychological market research : [paper pres. to the] XVI Esomar - Wapor conference, Luzern 1963 / by P.H. van Westendorp
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The IPM - CC rating technique in psychological market research : [paper pres. to the] XVI Esomar - Wapor conference, Luzern 1963 / by P.H. van Westendorp
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The IPM - CC rating technique ...... Wapor conference, Luzern 1963
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The IPM - CC rating technique ...... 1963 / by P.H. van Westendorp