(美)西.谢尔顿著;郭先林等译 (美)西德尼.谢尔顿著;吴力励译 (美)西德尼.谢尔顿著;施咸荣译 (美)西·谢尔顿著 (美)西奥多.泽尔丁著;严撷芸等译 (美)西德尼.谢尔顿著 (美)西德尼.谢尔顿著?