TY - RPRT TI - Test drilling for coal in 1982-83 in the Jefferson National Forest, Virginia; Part 4, Analyses of coal cores from the Valley coal fields AU - Frederick Otto Simon AU - Kenneth John Englund PY - 1983 DO - 10.3133/ofr83626 UR - https://pubs.usgs.gov/publication/ofr83626 ID - ofr83626 ER -