TY  - RPRT
TI  - Exploratory drilling program of the U.S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-51
AU  - Allen Francis Agnew
AU  - Arthur E. Flint
AU  - John W. Allingham
PY  - 1953
DO  - 10.3133/cir231
UR  - https://pubs.usgs.gov/publication/cir231
ID  - cir231
ER  -