TY  - RPRT
TI  - Drilling techniques presently in use by the Geothermal Studies Project, U.S. Geological Survey
AU  - Thomas H. Moses
AU  - J.H. Sass
PY  - 1979
DO  - 10.3133/ofr79763
UR  - https://pubs.usgs.gov/publication/ofr79763
ID  - ofr79763
ER  -