Some lead-zinc and zinc-copper deposits of the Ketchikan and Wales districts, Alaska /
Robinson, G. D.
Twenhofel, W. S.(William Stephens),1918-
Washington, [D.C.] : U.S. G.P.O.,
1953.
Two folded col. maps in pocket.
Includes index.
Bibliography: p. 82.
Lead ores
Lead ores
Zinc ores
Zinc ores