Sittig-Rolf, Andrea Power referrals : the ambassador method for empowering others to promote your business and do the selling for you Andrea Sittig-Rolf - New York McGraw-Hill 2009 - xiv, 173 p. : ill. ; 23 cm Includes index ISBN: 9780071597685 ISSN: 2008014410 Subjects--Topical Terms: Business referralsSelling Dewey Class. No.: 658.8 SIT