Tschohl, John The customer is boss : A practical guide for getting what you paid for and more / John Tschohl. - Minneapolis, Minn. : Best Sellers Pub., [1993]. - 219 p. ; 23 cm. ISBN: 9780963626806 Subjects--Topical Terms: Customer relations. Customer services. Consumer education. Dewey Class. No.: 381.33 / TSC