Asbestos Allen, Milton Arthur 1890- creator Butler, G. M. (Gurdon Montague) 1881- joint author. text azu Tucson, Ariz University of Arizona, Arizona bureau of mines 1921 monographic eng
print
31 p. illus. (map) pl. 23 cm. by M. A. Allen and G. M. Butler. At head of title: University of Arizona bulletin. Selected bibliography: p.30-31. Asbestos TN930 .A5 MN 1.3:B 85/113 MN 1.3:B 85/113 Bulletin ; no. 113 University of Arizona. State Bureau of Mines. Mineral technology series ; no. 24 University of Arizona. State Bureau of Mines. gs 21000265 DLC 760218 20260227111325.0 gs 21000265