http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Aeromagnetic map of Alaska from latitude 65-68 N., longitude 141-162 W., color-shaded relief
Division of Geological and Geophysical Surveys.
1 map on 2 sheets : color ; sheets 101 x 109 cm., folded in envelope 30 x 24 cm.
U.S. Department of the Interior, U.S. Geological Survey ; by John W. Cady ; prepared in cooperation with the State of Alaska, Department of Natural Resources, Division of Mining and Geological and Geophysical Surveys.
Relief shown by shading and gradient tints.
Includes text, bibliography, table, and 3 index maps.
Geophysical investigations (Geological Survey (U.S.)) ; GP-992