cam a22 u 4500 128721634 CHVBK 20140824053113.0 hz |||||||||| 880212s1979 xxu b 00 eng|d EPA-460-3-80-007 PB-80-212129 (OCoLC)638500076 (NEBIS)000240177 ETH-BIB ger ETH-BIB ETHICS-ISBD Durability demonstration of systems for control of sulfuric acid Mikroform Melvin N.Ingalls; Southwest research Institute, San Antonio - Tex Springfield - Va. 1979 4 Microfiches. Ingalls M.N. 1 MF Andere Mikroform = Autre microforme NEBIS 700 1- Ingalls M.N. BK020000 XK020000 XK020000 NEBIS E01 E01 RP MIKR: PB80/212129