Schiffman Stephan Cold calling techniques (that really work!) / Stephan Schiffman. - 4th ed. completely updated and rev. - Holbrook, Mass. : Adams Media Corp., 1999. - xiv, 140 p. ; 22 cm. ISBN: 1580620760 Subjects--Topical Terms: Telephone sellingTelemarketing LC Class. No.: HF5438.3 Dewey Class. No.: 658.85