00257nam a2200109Ia 4500008004100000041000800041082001800049100002300067245001900090260003100109365000700140230303s9999    xx            000 0 und d  aeng  a621.38132 WEN  aWentzell(Timothy.)  aMachine Design  aNEW YORKbAustralia Cenage  cRS