TY  - RPRT
TI  - Hydrology of area 4, Eastern Coal Province, Pennsylvania, Ohio, and West Virginia
AU  - Donald K. Roth
AU  - Morris J. Engelke
AU  - and others
PY  - 1981
DO  - 10.3133/ofr81343
UR  - https://pubs.usgs.gov/publication/ofr81343
ID  - ofr81343
ER  -