TY  - RPRT
TI  - Physical environment and hydrologic characteristics of coal-mining areas in Missouri
AU  - J. E. Vaill
AU  - James H. Barks
PY  - 1980
DO  - 10.3133/wri8067
UR  - https://pubs.usgs.gov/publication/wri8067
ID  - wri8067
ER  -