Mineral resources of Alaska: report on progress of investigations in 1933
Bulletin / Geological Survey ;
Mineral industry of Alaska in 1933.
Willow Creek-Kashwitna District, Alaska.
Mineral deposits of the Ruby-Kuskokwim region.
Bulletin (Geological Survey (U.S.)) ;
Smith, Philip S. (Philip Sidney), 1877-1949.
Tuck, Ralph, 1904- author.
Smith, Philip S. (Philip Sidney), 1877-1949. Mineral industry of Alaska in 1933.
Capps, Stephen R. (Stephen Reid), 1881-1949. Willow Creek-Kashwitna District, Alaska.
Mertie, John Beaver, 1888-1980. Mineral deposits of the Ruby-Kuskokwim region.
United States. Department of the Interior.
Geological Survey (U.S.)
by Philip S. Smith and others.