Cobalt availability : a minerals availability appraisal /
Willard, David G.
Cobalt availability : a minerals availability appraisal / by David G. Willard and Donald I. Bleiwas. - Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1991. - iv, 35 p. : ill., maps. - Information circular ; 9286 . - Information circular (United States. Bureau of Mines) ; 9286. .
91036125
Cobalt industry.
Cobalt mines and mining.
Strategic materials.
Cobalt industry--United States.
Cobalt mines and mining--United States.
Strategic materials--United States.
Cobalt availability : a minerals availability appraisal / by David G. Willard and Donald I. Bleiwas. - Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1991. - iv, 35 p. : ill., maps. - Information circular ; 9286 . - Information circular (United States. Bureau of Mines) ; 9286. .
91036125
Cobalt industry.
Cobalt mines and mining.
Strategic materials.
Cobalt industry--United States.
Cobalt mines and mining--United States.
Strategic materials--United States.