TY - RPRT TI - Cobalt distribution in B-horizon soils, Iron River 1° x 2° quadrangle, Michigan and Wisconsin AU - J. D. Hoffman AU - H. V. Alminas AU - R.T. Hopkins PY - 1984 DO - 10.3133/i1360j UR - https://pubs.usgs.gov/publication/i1360J ID - i1360J ER -