مؤلف: Mark J. Hilsenroth

Michel Hersen, Editor-in-Chief, Pacific University, Portland, OR. Director of the School of Professor Psych. at Pacific U. and the author of more than 80 books Mark Hilsenroth, Volume Editor, Adelphi University; Derner Institute of Advanced Psychological Studies, Centerport, NY. Professor at Adelphi University. Daniel Segal, Volume Editor, University of Colorado at Colorado Springs; CU Aging Center, Colorado Springs, CO. Associate Professor of Psychology at the University of Colorado at Colorado Springs.