TY  - RPRT
TI  - Chemical analyses of coal, coal-associated rocks and coal combustion products collected for the National Coal Quality Inventory
AU  - Joseph R. Hatch
AU  - John H. Bullock
AU  - Robert B. Finkelman
PY  - 2006
DO  - 10.3133/ofr20061162
UR  - https://pubs.usgs.gov/publication/ofr20061162
ID  - ofr20061162
ER  -