Markham,Stephen K. Traversing the Valley of Death. A Practical guide for corporate innovation leaders. Stephen K.Markham - 1st. - America Robert B.Tucker 2015. - 178p. HB - Traversing the Valley of Death. . Hard Cover ISBN: 9780990985303 ISSN: 9780990985303 Subjects--Personal Names: Markham,Stephen K. LC Class. No.: 658 Dewey Class. No.: 658 MAR 2015