Uranophane at Silver Cliff Mine Lusk, Wyoming : contributions to the geology of uranium /

Autor Wilmarth, Verl R., Johnson, D. H.
Vydáno 1954

Exploration for beryllium at the Helen Beryl, Elkhorn, and Tin Mountain pegmatites, Custer County, South Dakota /

Autor Staatz, Mortimer Hay, 1918-, Page, Lincoln R. 1910-1996, Norton, James J. 1918-2005, Wilmarth, Verl R.
Vydáno 1963