Geology and beryl deposits of the peerless pegmatite, Pennington County, South Dakota : pegmatites and other precambrian rocks in the Southern Black Hills /

Autor Sheridan, Douglas M., 1921-, Stephens, Hal G., Staatz, Mortimer Hay, 1918-, Norton, James J. 1918-2005
Vydáno 1957

Geology of the Berne quadrangle Black Hills South Dakota /

Autor Redden, Jack Allison
Vydáno 1968