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Principles of Effective Salesmanship

J. S. SchiffErwin RauschGeorge Rausch

出版	Didactic Systems, Incorporated, 1971
主題	Business & Economics / Sales & Selling / General
ISBN	08940107519780894010750
URL	http://books.google.com.hk/books?id=6LKiAAAACAAJ&hl=&source=gbs_api