cam a22 u 4500 128743905 CHVBK 20200615041046.0 hz ||||-|||| 880212s1981 xxu |b 10 |eng|d EPA-600-9-81-017 PB-81-244808 (OCoLC)637375877 (NEBIS)000255601 ETH-BIB ger ETH-BIB ETHICS-ISBD Proceedings: Symposium on iron and steel pollution abatement technology for 1980 Mikroform Philadelphia - Pa., November 18-20, 1980 comp.: Franklin A.Ayer; prep.: Research Triangle Institute, Research Triangle Park - N.C IRON AND STEEL POLLUTION ABATEMENT TECHNOLOGY for 1980 Springfield - Va. 1981 7 Microfiches. Konferenzschrift Philadelphia (PA) 1980/11 gnd-content Ayer F.A. Symposium on Iron and Steel Pollution Abatement Technology for 1980 (1980 Philadelphia, PA) (DE-588)1091140952 BK020800 XK020000 XK020000 1 MF Andere Mikroform = Autre microforme Philadelphia (PA) Kongress = Congrès 1980/11 NEBIS E01 E01 RP MIKR: PB81/244808 NEBIS 700 1- Ayer F.A. NEBIS 711 2- Symposium on Iron and Steel Pollution Abatement Technology for 1980 (1980 Philadelphia, PA) (DE-588)1091140952