TY  - RPRT
TI  - Oxalic acid-soluble iron and manganese oxides in the Flathead Sandstone, Choteau quadrangle, Montana— A sample medium for mineral exploration
AU  - R. W. Leinz
AU  - James W. Whipple
PY  - 1981
DO  - 10.3133/ofr81475
UR  - https://pubs.usgs.gov/publication/ofr81475
ID  - ofr81475
ER  -