Schiffman, Stephan Secrets of Selling Services : Everything You Need to Sell What Your Customer Can’t See―from Pitch to Close / Stephan Schiffman - New York : Mc-Graw Hill, 2013 - xiv,226p. : 23cm Includes Index(p.221-226) ISBN: 9780071791625 USD $18.00 LC Class. No.: HF5438.25 .S355 Dewey Class. No.: 658.85 / SCH