Lewis, H. G. (1974). The businessman's guide to advertising & sales promotion. McGraw-Hill Book Company.
Cita Chicago Style (17a ed.)Lewis, Herschell Gordon. The Businessman's Guide to Advertising & Sales Promotion. New York [etc.]: McGraw-Hill Book Company, 1974.
Cita MLA (9a ed.)Lewis, Herschell Gordon. The Businessman's Guide to Advertising & Sales Promotion. McGraw-Hill Book Company, 1974.
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