00293nam a2200121Ia 4500008004100000041000800041082001300049100001300062245004600075260001200121365001600133700002200149230718s9999    xx            000 0 und d  aeng  a540bSIN  aSinha S.  aEngineering Chemistry Fro U. P. Technical  bS Chand  cRs.b125.00  aSinha S. & Others