TY  - RPRT
TI  - Ground water in the northern part of Clackamas County, Oregon
AU  - A.R. Leonard
AU  - C. A. Collins
PY  - 1983
DO  - 10.3133/ofr801049
UR  - https://pubs.usgs.gov/publication/ofr801049
ID  - ofr801049
ER  -