Reference | {Deposit:: CONFIDENTIAL UNPUBLISHED WAR MIN. EXAM., STANDARD MANGANESE}{Deposit:: HUNTINGTON CO., PENNA., 1952}{Deposit:: FOOSE, RICHARD M., PENNA. GEOLOGICAL SURVEY, 4 TH SERIES, BULL M-}{Deposit:: 1945, PP. 94}{Deposit:: WHITE, I.C., LESLEY, J.P.,ED., 2ND GEOL. SUR OF PA., REPT OF}{Deposit:: T3, PP 388-399, 1885} |