1. Aeromagnetic map of the northwestern part of the Hibbing 1⁰?x 2⁰?quadrangle, Minnesota [microform]
1988. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey : [Books and Open-file Reports Section, distributor]. English. Public. Minnesota.