(美) Richard Johnsonbaugh著 (美)Richard Johnsonbaugh著 Richard Johnsonbaugh著. (美) Richard Monson-Haefel著 (美) Richard Cotton著 (美) Richard Jackson Harris著 (美) Richard Johnsonbaugh, Martin Kalin著 (美) Richard A. Roth著 (美) Richard G. Lyons著 (美) Richard Kahn著