Arizona gold placers,
Allen, Milton Arthur, 1890-
Arizona gold placers, by M.A. Allen. - Tucson, Ariz., Published by the University of Arizona, Arizona Bureau of Mines, 1922. - 24 p. map, fold. tab. 23 cm. - Economic series, no. 18 . - University of Arizona. State Bureau of Mines. Economic series ; no. 18. .
At head of title: University of Arizona bulletin.
Bibliography: p.23-24.
gs 23000111
Gold mines and mining--Arizona.
TN423.A75 / A6
622.3421
MN 1.3:B 85/118
Arizona gold placers, by M.A. Allen. - Tucson, Ariz., Published by the University of Arizona, Arizona Bureau of Mines, 1922. - 24 p. map, fold. tab. 23 cm. - Economic series, no. 18 . - University of Arizona. State Bureau of Mines. Economic series ; no. 18. .
At head of title: University of Arizona bulletin.
Bibliography: p.23-24.
gs 23000111
Gold mines and mining--Arizona.
TN423.A75 / A6
622.3421
MN 1.3:B 85/118