GOLDMANN HEINZ M. (1993). HOW TO WIN CUSTOMERS. PAN BOOKS LTD.
Chicago-čujuhus (17. p.)GOLDMANN HEINZ M. HOW TO WIN CUSTOMERS. LONDON: PAN BOOKS LTD, 1993.
MLA-čujuhus (9. p.)GOLDMANN HEINZ M. HOW TO WIN CUSTOMERS. PAN BOOKS LTD, 1993.
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