Reference | {Deposit:: CUMMINGS J B REPT OF S D STATE PLANNING BOARD,TUNGSTEN MININ}{Deposit:: DAKOTA 1936 P 28}{Deposit:: S DAK SCHOOL OF MINES BULL 17 P 150}{Deposit:: S DAK SCHOOL OF MINES BULL 12 P 52}{Deposit:: US BUREAU OF MINES INF CIRC 7707 P 47} |