TY  - RPRT
TI  - Distribution of water-quality characteristics that may indicate the presence of acid mine drainage in the eastern coal province of the United States
AU  - Kim L. Wetzel
AU  - Scott A. Hoffman
PY  - 1989
DO  - 10.3133/ha705
UR  - https://pubs.usgs.gov/publication/ha705
ID  - ha705
ER  -