TY  - RPRT
TI  - Contributions to economic geology, 1910, Part II, Mineral fuels--Miscellaneous analyses of coal samples from various fields of the United States
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1912
DO  - 10.3133/b471j
UR  - https://pubs.usgs.gov/publication/b471J
ID  - b471J
ER  -