Stephen Marshak ; with contributions by Donald Prothero. Joel E. Ross ; with contributions by Susan Perry. D. Zissos ; with contributions by J.C. Bathory. D. Zissos, with contributions by J. C. Bathory. Hans J. Eysenck ; with contributions by David W. Fulker. Frank K. Reilly ; with contributions by Don M. Chance. Mohammad Najafi ; with contributions by Sanjiv Gokhale. Sheana Bull ; with contributions by Mary McFarlane. William P. Ziemer ; with contributions by Monica Torres. Bernard W. Pipkin, with contributions by D.D. Trent.