TY  - RPRT
TI  - Copper distribution in B-horizon soils, Iron River 1° x 2° quadrangle, Michigan and Wisconsin
AU  - J. D. Hoffman
AU  - R.T. Hopkins
PY  - 1984
DO  - 10.3133/i1360h
UR  - https://pubs.usgs.gov/publication/i1360H
ID  - i1360H
ER  -