Lead-zinc deposits of Cordillera Blanca and northern Cordillera Huayhuash, Peru /
Bodenlos, Alfred J.
Ericksen, George Edward.
Washington, [D.C.] : U.S. G.P.O.,
1955.
Twelve folded maps in pocket.
Includes index.
Lead ores
Zinc ores
Lead mines and mining
Zinc mines and mining