00280nam a2200109 a 450000500170000008200180001710000160003524500460005126000310009730000180012863000240014620251202164242.0  a660.0321bENC  aKirk-Othmer  aEncyclopedia of chemical technology Vol 7  aNew YorkbJohn Wileyc1978  a891 p.b26 cm  aChemical technology