TY  - RPRT
TI  - Calcite deposits in Imperial and San Diego counties, California: Report on the calcite mines in northeast San Diego County, California
AU  - Cordell Durrell
PY  - 1977
DO  - 10.3133/ofr77685b
UR  - https://pubs.usgs.gov/publication/ofr77685B
ID  - ofr77685B
ER  -