TY  - RPRT
TI  - Relation between ground water and surface water in Brandywine Creek basin, Pennsylvania
AU  - F. H. Olmsted
AU  - A. G. Hely
PY  - 1962
DO  - 10.3133/pp417a
UR  - https://pubs.usgs.gov/publication/pp417A
ID  - pp417A
ER  -