Some facts about ore deposits,
Butler, G. M. 1881-
Some facts about ore deposits, by G. Montague Butler. - Tucson, Ariz., University of Arizona [1935] - 99 p. 23 cm. - Arizona. Bureau of Mines. Bulletin no. 139; Geology series, no. 8 . - University of Arizona. State Bureau of Mines. Bulletin ; no. 139. University of Arizona. State Bureau of Mines. Geology series ; no. 8. . - Bulletin (University of Arizona) ; v. 6, no. 6. .
Selected bibliography: p. 99.
gs 35000278
Ore deposits.
TN24.A6 / A35 no. 139
MN 1.3:B 85/139
Some facts about ore deposits, by G. Montague Butler. - Tucson, Ariz., University of Arizona [1935] - 99 p. 23 cm. - Arizona. Bureau of Mines. Bulletin no. 139; Geology series, no. 8 . - University of Arizona. State Bureau of Mines. Bulletin ; no. 139. University of Arizona. State Bureau of Mines. Geology series ; no. 8. . - Bulletin (University of Arizona) ; v. 6, no. 6. .
Selected bibliography: p. 99.
gs 35000278
Ore deposits.
TN24.A6 / A35 no. 139
MN 1.3:B 85/139