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- 85600080 contributor B5081601.
- 85600080 created "1985.".
- 85600080 date "1985".
- 85600080 date "1985.".
- 85600080 dateCopyrighted "1985.".
- 85600080 description "Bibliography: p. 21-23.".
- 85600080 extent "23 p. :".
- 85600080 isPartOf "Report of investigations (United States. Bureau of Mines) ; 8987.".
- 85600080 isPartOf "Report of investigations ; 8987".
- 85600080 issued "1985".
- 85600080 issued "1985.".
- 85600080 language "eng".
- 85600080 publisher "Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines,".
- 85600080 spatial "Pennsylvania Armstrong County".
- 85600080 spatial "Pennsylvania Armstrong County.".
- 85600080 spatial "Pennsylvania Indiana County".
- 85600080 spatial "Pennsylvania Indiana County.".
- 85600080 subject "622 s 622/.334 19".
- 85600080 subject "Coal Geology Pennsylvania Armstrong County.".
- 85600080 subject "Coal Geology Pennsylvania Indiana County.".
- 85600080 subject "Coal mines and mining Pennsylvania Armstrong County Safety measures.".
- 85600080 subject "Coal mines and mining Pennsylvania Indiana County Safety measures.".
- 85600080 subject "River channels.".
- 85600080 subject "TN23 .U43 no. 8987 TN805.P4".
- 85600080 title "Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes / by Carla A. Kertis.".
- 85600080 type "text".