Hess, Frank L.
Cobalt, Molybdenum, Nickel, Tantalum, Titanium, Tungsten, Radium, uranium and vanadium in 1921. - Washington, D.C. Government Printing Office 1922 - pp. 207-233
Impreso En biblioteca 2 ejemplares.
Ingles
MINERIA
Cobalt, Molybdenum, Nickel, Tantalum, Titanium, Tungsten, Radium, uranium and vanadium in 1921. - Washington, D.C. Government Printing Office 1922 - pp. 207-233
Impreso En biblioteca 2 ejemplares.
Ingles
MINERIA