00270nam a2200109Ia 450000500170000000800410001708200190005810000150007724500270009226000320011930000090015120260205054020.0260111s9999||||xx |||||||||||||| ||und||  a621.076  J199M  aJain , R K 0aMechanical Engineering  aN. DelhibKhanna Pub.c2000  av.p.