TY  - RPRT
TI  - Water resources data for Pennsylvania water year 1981, Volume 1. Delaware River Basin
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1982
DO  - 10.3133/wdrpa811
UR  - https://pubs.usgs.gov/publication/wdrPA811
ID  - wdrPA811
ER  -