(美)Richard Petersen著 (美) Richard Petersen (美)Edward Petersen著 (美)Richard Warren著 (美)Grant Petersen著 (美) Grant Petersen著 (美)安德森(Richard Andersen)著 (美)[R.彼得森](Richard Petersen)著 (美)Michael Amundsen著 (美)[R.L.彼得森]Richard L．Petersen著