Hess, Frank L.
Cobalt, Molybdenum, Tantalum, Titanium, Radium, uranium and vanadium in 1918. - Washington, D.C. Government Printing Office 1920 - pp. 791-817
Impreso
Ingles
MINERIA
Cobalt, Molybdenum, Tantalum, Titanium, Radium, uranium and vanadium in 1918. - Washington, D.C. Government Printing Office 1920 - pp. 791-817
Impreso
Ingles
MINERIA