00326nam a2200133Ia 4500003000400000005001700004008004100021020001800062100002700080245004000107260002300147300001400170350000800184SNU20150610121329.0120327s9999    xx            000 0 und d  a9788121903592  aS.S.Dara and S.S.Umare  aA Textbook of Engineering Chemistry  bS.Chand Publishing  axvi;972p.  a425