TY  - RPRT
TI  - Estimate of depth to bed rock at some dam sites in the Gunnison, Little Colorado and Zuni River Basins, Colorado and Arizona, based on resistivity measurements 1938-1939
AU  - H. Cecil Spicer
PY  - 1940
DO  - 10.3133/ofr407
UR  - https://pubs.usgs.gov/publication/ofr407
ID  - ofr407
ER  -