(美)Bill Sheldon[等 (美)Bill Sheldon[等]著 (美)Bill Jelen著 (美)Kathy Sheldon著 (美)Bill Bryson著 (美)Robert Sheldon著 (美)谢尔登(Sheldon (美)Bill Venners著 (美)Bill Locke著 (美)谢尔顿(Sheldon,S.)著