TY  - RPRT
TI  - Manganese deposits of the Black Wonder area, Santa Clara and Stanislaus Counties, California
AU  - P.D. Trask
AU  - W. G. Pierce
AU  - S.G. Lasky
PY  - 1943
DO  - 10.3133/ofr4346
UR  - https://pubs.usgs.gov/publication/ofr4346
ID  - ofr4346
ER  -