WERTENBROCH K. (2001). MEASURING CONSUMER WILLINGNESS TO PAY AT THE POINT OF PURCHASE. MARKETING SERVICE INSTITUTE.
Chicago-referens (17:e uppl.)WERTENBROCH K. MEASURING CONSUMER WILLINGNESS TO PAY AT THE POINT OF PURCHASE. MASSACHUSSETS: MARKETING SERVICE INSTITUTE, 2001.
MLA-referens (9:e uppl.)WERTENBROCH K. MEASURING CONSUMER WILLINGNESS TO PAY AT THE POINT OF PURCHASE. MARKETING SERVICE INSTITUTE, 2001.
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