TY  - RPRT
TI  - Tephroite in California manganese deposits
AU  - D. F. Hewett
AU  - C. W. Chesterman
AU  - B.W. Troxel
PY  - 1961
DO  - 10.2113/gsecongeo.56.1.39
UR  - https://pubs.usgs.gov/publication/70220641
ID  - 70220641
ER  -