00317nam a2200109Ia 4500008004100000020001800041082001500059100002000074245006700094260003500161300001100196210430s9999    xx            000 0 und d  a81-7409-175-0  a660 C426 U  aP.Chattopadhyay  aUnit Operations of Chemical Engineering Vol 1cP.Chattopadhyay  aIndiabKhanna Publishersc2003  a1275p.