00343nam a2200133Ia 4500003000400000005001700004008004100021082001600062100001900078245004800097250000800145260004400153300001200197TMU20260713121108.0160921s9999    xx            000 0 und d  a660bC399.T  aChawla, Shashi  aTheory & Practical of Engineering Chemistry  a5th  bDhanpat Rai & Companyc2009aNew Delhi	  a13.18p.