(美)比尔德(C.A.Beard)著 (美)比尔特(Beard, C.A.)著 (美)比尔德(Beard,C.A.)著 (美)贝尔德(C.A.Beard)著 (美)俾耳德(C.A.Beard)著 (美)比尔曼(Bearman, D.)著
