TY  - RPRT
TI  - Water resources data for Pennsylvania, water year 1977; Volume 3, Ohio River and St. Lawrence River basins
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1978
DO  - 10.3133/wdrpa773
UR  - https://pubs.usgs.gov/publication/wdrPA773
ID  - wdrPA773
ER  -