(美)Richard L. Harris著 (美)Richard S.Sharf著 (美)Richard D.Parsons著 (美)Richard Davis著 (美)Richard K. Brail编著 (美)Richard P. Hodges著 (美)Richard Jackson Harris著 (美)Richard A. Poisel著 (美)Richard A. Roth著 (美)Richard A.Bartle编著