http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Geologic map of the west-central Kukpowruk-Nuka Rivers region, northwestern Alaska
Kukpowruk-Nuka Rivers region, northwestern Alaska
2 maps ; 105 x 77 cm., 29 x 69 cm., on sheet 82 x 104 cm., foldedin envelope 25 x 32 cm.
Miscellaneous field studies (Geological Survey (U.S.)) ; map MF-1669