Reference | {Deposit:: VHAY, J. S., 1952, COBALT RESOURCES, CHAPT. V1 IN MATERIALS SURVEY: COBALT, NATIONAL SECURITY RESOURCES BOARD, US DEPT. OF COMMERCE, P. 56}{Deposit:: BILBREY, J. H., JR., 1962, BUREAU OF MINES INFORMATION CIRCULAR 8103, P. 28}{Deposit:: U.S.B.M. FILES} |