TY - RPRT TI - Identification and significance of accessory minerals from a bituminous coal AU - R. B. Finkelman AU - R.W. Stanton PY - 1978 DO - 10.1016/0016-2361(78)90135-7 UR - https://pubs.usgs.gov/publication/70012398 ID - 70012398 ER -