TY  - RPRT
TI  - U.S. Geological Survey workshop on nonfuel mineral-resource appraisal of wilderness and CUSMAP areas
AU  - Daniel R. Shawe
PY  - 1981
DO  - 10.3133/cir845
UR  - https://pubs.usgs.gov/publication/cir845
ID  - cir845
ER  -