Herbert W. Roesky ; foreword by George A. Olah. Milton Chen ; foreword by George Lucas. with a foreword by George H. Dowty. Clifford J. Sherry ; foreword by Robert S. Ledley. Nadia Amoroso; foreword by George Hargreaves. Pete McBreen ; foreword by Dave Thomas. Robert K. Moseley ; [foreword by Ma Keping].