TY  - RPRT
TI  - Hydrology of Area 7, Eastern Coal Province, Ohio
AU  - Morris J. Engelke
AU  - D.K. Roth
AU  - and others
PY  - 1981
DO  - 10.3133/ofr81815
UR  - https://pubs.usgs.gov/publication/ofr81815
ID  - ofr81815
ER  -