cam a22 u 4500 128599561 CHVBK 20200921121528.0 880212s1973 xxu | 10 |eng|d (OCoLC)637001132 (NEBIS)000207404 ETH-BIB ger ETH-BIB ETHICS-ISBD Proceedings, eighth Forum on geology of industrial minerals Iowa City - Io., April 12-14, 1972 chairman: Fred H.Dorheim Iowa City 1973 IV, 195 p. fig.; tab.; diagr.; [annex]: 1 tab. Iowa geological Survey, public information circular no.5 5 (NEBIS)000006366 126697116 PRIMÄRE MINERALE (LAGERSTÄTTEN) ger (ETHUDK)000020659 ethudk Konferenzschrift Iowa City (IA) 1972/04 gnd-content u PRIMÄRE MINERALE (LAGERSTÄTTEN) ger 553.251.1 nebis E1 u MINERAUX PRIMAIRES (GISEMENTS) fre 553.251.1 nebis E1 u PRIMARY MINERALS (MINERAL DEPOSITS) eng 553.251.1 nebis E1 Dorheim Fred H. Annual Forum on the Geology of Industrial Minerals (DE-588)1091872465 BK020800 XK020000 XK020000 Iowa City (IA) Kongress = Congrès 1972/04 NEBIS E16 E16 RH P 815862: 5 NEBIS 490 -- Iowa geological Survey, public information circular no.5 5 (NEBIS)000006366 126697116 NEBIS 700 1- Dorheim Fred H. NEBIS 711 2- Annual Forum on the Geology of Industrial Minerals (DE-588)1091872465