TY  - RPRT
TI  - Geologic data report on the Black Butte hydrofrac hole, western San Bernardino County, California
AU  - J.E. Springer
AU  - G.D. Myren
PY  - 1985
DO  - 10.3133/ofr85214
UR  - https://pubs.usgs.gov/publication/ofr85214
ID  - ofr85214
ER  -