TY  - RPRT
TI  - Preliminary interpretation of vertical electrical-resistivity soundings in the Saginaw Valley, Michigan
AU  - R.J. Mandle
AU  - David B. Westjohn
PY  - 1987
DO  - 10.3133/ofr87474
UR  - https://pubs.usgs.gov/publication/ofr87474
ID  - ofr87474
ER  -