(美)Richard Jennings 著 (美) Roger Jennings 著 (美) Roger Jennings著 (美)Richard Deal 著 (美) Richard Reese著 (美) Richard Wentk著 (美)Richard Petersen著 (美) Richard P. Hodges著 (美)Richard A. Poisel 著 (美)Richard C.Leinecker 著
