Reference | {Deposit:: CALIF. JOUR. M. AND G., VOL. 42 , NO. 1 , JAN. 1946 , PP. 37 - 45}{Deposit:: U.S. BUREAU OF MINES, INV. REPT. 3876 PP. 6 - 7 , INV. REPT. 4609 , 1949 , PP. 1 - 4}{Deposit:: D.O.M. BULL. 153 , 1950 , PP 45 - 46}{Deposit:: D.O.M. BULL. 176 , 1957 , P. 643} |