00377nam a2200109Ia 4500008004100000041000800041245006800049260003400117365000700151999001900158952009000177230303s9999    xx            000 0 und d  aeng  aLaboratory Manual on Engineering Chemistry Dhanpat Rai & Sons F  aNew DelhibDhanpat Rai & Sons  cRS  c174422d174422  00104070aECDbECDd2023-03-03g0.60l0pEB821r2023-03-03 00:00:00w2023-03-03yBK