TY  - RPRT
TI  - Water resources data for Pennsylvania; water year 1977; Volume 2, Susquehanna and Potomac River basins
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1978
DO  - 10.3133/wdrpa772
UR  - https://pubs.usgs.gov/publication/wdrPA772
ID  - wdrPA772
ER  -