TY  - RPRT
TI  - Investigation of bedrock depths by electrical-resistivity methods in the Ripon-Fond du Lac area, Wisconsin
AU  - H. Cecil Spicer
PY  - 1950
DO  - 10.3133/cir69
UR  - https://pubs.usgs.gov/publication/cir69
ID  - cir69
ER  -