cam a22 u 4500 128598441 CHVBK 20200921061921.0 he |||||||||| 880212s1973 xxu b 00 eng|d PB-245898 - PB-245899 BUMINES-OFR-77-75 USBM-H-0122046 (OCoLC)888800870 (NEBIS)000231989 ETH-BIB ger ETH-BIB ETHICS-ISBD Extinguishing coal mine fires by remote sealing Mikroform D. Randolph Berry, Kenneth Maser, David A. Monaghan, Adi R. Guzdar ; prep.: Foster-Miller Associates, Inc., Waltham, Mass Springfield, Va. 1973 2 vols. (8 Microfiches) GRUBENBRÄNDE + FEUERSCHUTZ + UNTERTAGEBRÄNDE IN GRUBEN (BERGBAU) ger (ETHUDK)000029565 ethudk u GRUBENBRÄNDE + FEUERSCHUTZ + UNTERTAGEBRÄNDE IN GRUBEN (BERGBAU) ger 622.82 nebis E1 u FIRES UNDERGROUND + FIRES IN MINES + MINE FIRES + FIRE-FIGHTING (MINING) eng 622.82 nebis E1 u INCENDIES SOUTERRAINS + FEUX DANS LA MINE + COMBAT CONTRE LE FEU DANS LA MINE (INDUSTRIE MINIÈRE) fre 622.82 nebis E1 Berry D.R. BK020000 XK020000 XK020000 1 MF Mikrofiche = Microfiche NEBIS E01 E01 RP MIKR: PB245898 NEBIS 700 1- Berry D.R.