00283nam a2200109Ia 4500008004100000082001700041100001600058245003400074260004000108300001000148650001500158191201s2005    xx            000 0 und d  a621.815bDHT  aDHAWAN, R K 2aA Textbook of Machine Drawing  aN.DelhibS Chand and Co. Ltd.c2005  a3.403  aB.Tech(ME)