00356nam a2200133Ia 4500008004100000020001800041041000800059082001300067100001600080245004200096250001600138260004800154300002000202220530s9999    xx            000 0 und d  a9788121903592  aeng  a540bDAR  aDara, S. S.  aA Text Book of Engineering  Chemistry  a1st Edition  aNew DelhibS. chand company Pvt. Ltd.c2005  aXVI; 762 P.bPB