00423nam a2200133Ia 4500008004100000041000800041082002100049100001900070245002700089260004900116300000800165952010100173999001500274211209s1957    xx            000 0 und d  aeng  a620.1123 N57 LEN  aLENTURILER R W  aPROBLEMS IN MECHANISM   aNEW YORKbMCGRAW-HILL BOOK AND COMPANYc1957  a114  00104070aRITbRITd2021-12-31l0o620.1123 N57 LENp4981r2021-12-31 00:00:00w2021-12-31yBK  c4981d4981