cam a22 u 4500 128619066 CHVBK 20200921064347.0 hz ||||-|||| 880212q19789999xxu |b 00 |eng|d DOE-TIC-1135-8 (OCoLC)888790301 (NEBIS)000241476 ETH-BIB ger ETH-BIB ETHICS-ISBD Modern underground mining technologies for pitching coalbed extraction Mikroform USDI/CMI joint research project through the Maria Sklodowska-Curie joint Fund prep.: Central mining Institute, Katowice Washington 1978- report no.2, 1977)- Microfiches KOHLEFLÖZ-METHAN (LAGERSTÄTTEN) ger (ETHUDK)000058838 ethudk KOHLENBERGBAU + GEWINNUNG FESTER ORGANISCHER MINERALIEN (BERGBAU) ger (ETHUDK)000029472 ethudk u KOHLEFLÖZ-METHAN (LAGERSTÄTTEN) ger 553.94*99 nebis E1 u KOHLENBERGBAU + GEWINNUNG FESTER ORGANISCHER MINERALIEN (BERGBAU) ger 622.33 nebis E1 u MÉTHANE DE CHARBON (GISEMENTS) fre 553.94*99 nebis E1 u COALBED METHANE (MINERAL DEPOSITS) eng 553.94*99 nebis E1 u COAL MINING + OTHER CARBONIFEROUS MINERALS (MINING) eng 622.33 nebis E1 u CHARBONS + MINERAIS SOLIDES D'ORIGINE ORGANIQUE + ROCHES CHARBONNEUSES (INDUSTRIE MINIÈRE) fre 622.33 nebis E1 BK020000 XK020000 XK020000 1 MF Andere Mikroform = Autre microforme NEBIS E01 E01 RP MIKR: DOETIC1135/8