Schiffman, Stephan The 25 most common sales mistakes-- and how to avoid them / Stephan Schiffman - 2nd ed. - Holbrook, Mass. : Adams Pub., 1995 - 124 p. ; 19 cm. ISBN: 1558505113 9781558505117 Subjects--Topical Terms: Selling. LC Class. No.: HF5438.25 / .S35 2009