Hardbook for prospectors
Pearl, Richard M.
Hardbook for prospectors - 5th ed. - New York ; Mcgraw-Hill , 1973 - 471p.
Mining Engineering
Prospecting
622.1 / PEA
Hardbook for prospectors - 5th ed. - New York ; Mcgraw-Hill , 1973 - 471p.
Mining Engineering
Prospecting
622.1 / PEA