TY  - RPRT
TI  - Contributions to economic geology, 1920, Part II, Mineral fuels--Character of coal in the Thomas bed near Harrison, West Virginia
AU  - M. R. Campbell
PY  - 1921
DO  - 10.3133/b716h
UR  - https://pubs.usgs.gov/publication/b716H
ID  - b716H
ER  -