Nuernberger, Phil, 1942- Increasing executive productivity : a unique program for developing the inner skills of vision, leadership, and performance / Phil Nuernberger - Englewood Cliffs, N.J. : Prentice-Hall, 1992 - 275 p. ; 21 cm. ISBN: 0134638115 LCCN: 91-030176 Subjects--Topical Terms: Executive abilityLeadership