00437nam a2200157 a 450000500170000008200180001710000160003524500500005126000310010130000190013263000240015196400160017599700110019199900150020295200620021720251202164242.0  a660.0321bENC  aKirk-Othmer  aEncyclopedia of chemical  technology vol   22  aNew YorkbJohn Wileyc1983  a1002 p.c26 cm  aChemical technology  bcdefg_  a6254 C  c4981d4981  00104070aPUbPUd1998-04-09l0o660.0321 ENCp6254yBK