TY  - RPRT
TI  - Preliminary report as of July 23, 1943 on the high alumina clay deposit at Hobart Butte, Lane County, Oregon
AU  - John S. Loofbourow
PY  - 1943
DO  - 10.3133/ofr4545
UR  - https://pubs.usgs.gov/publication/ofr4545
ID  - ofr4545
ER  -