Geology and ore deposits of the Bagdad area, Yavapai County, Arizona /

Autor Anderson, Charles A. 1902-1990, Scholz, E. A., Strobell, J. D.
Vydáno 1955

The vanadiferous zone of the phosphoria formation in western Wyoming and southeastern Idaho /

Autor McKelvey, V. E. 1916-, Strobell, J. D., Slaughter, A. L.
Vydáno 1986