00318nam a2200133Ia 4500003000400000005001700004008004100021082001500062100001500077245002700092250000900119260004500128300001100173TMU20260721145954.0160921s9999    xx            000 0 und d  a660bJan-E  aJain, P.C.  aEngineering Chemistry   a15th  bDhanpat Rai Publishingc2009aNew Delhi   a1288p.