(美) Richard S. Gallagher著 (美)Richard R.Goldberg著 (美) Robert G. Gallager著 (美) Richard S. Hall ... [等 (美) Richard A.Deal著 (美) Richard B. Wells著 (美) Richard C. Detmer著 (美) Richard H. Pells著 (美) Richard S. Hall ... [等] 著 (美)Richard Deal著
