cam a22 u 4500 128680768 CHVBK 20140824040351.0 he |||||||||| 880212s1980 xxu b 00 eng|d PB-80-208614 BUMINES-OFR-77-80 (OCoLC)638500103 (NEBIS)000240258 ETH-BIB ger ETH-BIB ETHICS-ISBD Development of a deep-penetrating borehole geophysical technique for predicting hazards ahead of coal mining Mikroform final technical report, 6/4/75-7/5/78 by Sidney A. Suhler, Thomas E. Owen, Jackie E. Hipp, Wendell R. Peters ; prep.: Southwest Research Institute, San Antonio, Tex Springfield, Va. 1980 2 Microfiches Suhler Sidney A. 1 MF Mikrofiche = Microfiche NEBIS 700 1- Suhler Sidney A. BK020000 XK020000 XK020000 NEBIS E01 E01 RP MIKR: PB80/208614