Charan, Ram. Know - how : The 8 skills that separate people who perform from those who don't / Ram Charan with Geri Willigan - London : Random house books , 2007. - 290 p. ; 21 cm. Includes index. ISBN: 9781905211241 LCCN: 2007030980 Subjects--Topical Terms: Leadership LC Class. No.: HD57.7 / .C4737 2007 Dewey Class. No.: 658.85