TY  - RPRT
TI  - Chemical and mineralogical analyses of coal-bearing strata in the Appalachian Basin
AU  - Frank T. Dulong
AU  - Nick Fedorko
AU  - John J. Renton
AU  - C. Blaine Cecil
PY  - 2002
DO  - 10.3133/ofr02489
UR  - https://pubs.usgs.gov/publication/ofr02489
ID  - ofr02489
ER  -