TY  - RPRT
TI  - Summary of the hydrogeologic regime as related to environmental characteristics, Allegheny County, Pennsylvania
AU  - Seymour Subitzky
PY  - 1975
DO  - 10.3133/mf641a
UR  - https://pubs.usgs.gov/publication/mf641A
ID  - mf641A
ER  -