Baum, Stephen H What made jack welch jack welch : how ordinary people become extraordinary leaders Stephen H. Baum, with Dave Conti - 1st ed - New York Crown Business 2007 - viii, 276 p. ; 24 cm Includes bibliographical references and index ISBN: 9780307337207 ISSN: 2007006733 Subjects--Topical Terms: Executive abilityLeadershipWelch, Jack, 1935- Dewey Class. No.: 658.4092 BAU