http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Metallic mineral resources map of the Gulkana quadrangle, Alaska
1 map ; 47 x 66 cm., on sheet 57 x 82 cm., folded in envelope 34 x 23 cm.
compiled by D.H. Richter and N.A. Matson, Jr. ; Department of the Interior, United States Geological Survey.
Relief shown by contours and spot heights.
Includes key to mineral deposits, explanation of map units, index to deposits, and location map.
"U.S. Government Printing Office: 1975-0-689/50."
Miscellaneous field studies ; map MF-419