00953cam a22002771 4500 gs 59000261 DLC 20260227111408.0 760217s1959 azua s000 0 eng gs 59000261 (OCoLC)1996896 DLC AzFU OCoLC DLC premarc QE431 .B93 MN 1.3:B 85/166 azdocs Butler, G. M. (Gurdon Montague), 1881- Petrology, condensed and simplified. Tucson, University of Arizona Press, 1959. 29 p. diagr., tables. 23 cm. Arizona. Bureau of Mines. Bulletin no. 166 Mineral technology series, no. 50 University of Arizona bulletin, v. 30, no. 1, September 1959 Petrology. University of Arizona. State Bureau of Mines. Bulletin ; no. 166. Bulletin (University of Arizona) ; v. 30, no. 1. 29389 29389