00281nam a2200121Ia 4500008004100000041000800041082001400049100001800063245002400081250001000105260003600115300000800151211209s1984    xx            000 0 und d  aeng  a621.8 BEV  aBEVAN, THOMAS  aTHEORY OF MACHINES   a3 ed.  aNEW DELHIbCBS PUBLISHERSc1984  a621