TY  - RPRT
TI  - Preliminary Report on the Cowlitz High-Alumina Clay Deposit Near Castle Rock, Cowlitz County, Washington
AU  - Robert L. Nichols
PY  - 1945
DO  - 10.3133/ofr4512
UR  - https://pubs.usgs.gov/publication/ofr4512
ID  - ofr4512
ER  -