Metallurgical investigations of southeastern missourl cobalt - nickel resources

/ H. Kenworthy and K.K..Kershner

Beneficiation of oxid manganese and manganese- silver ores from southern arizona

/ R. Havens, .S.J. Hussey, .J.A. Mcallister, and K.C.Dean

Jurassic- Cretaceous Boundary in Iran

/ K.Seyed - Emami

Mining methods and costs , mouat mine ,american chrome co ,still water county, mont .

/ paul M. Price

Thermodynamic properties of 65 elements their oxides , halides, carbides, and nitrides.

/ C. E. Wicks and F.E. Block