Butts, Allison

Copper Prepared under the editorial supervision of Allison Butts, with chapters by specialists 1954 Copper Butts, Allison Year not listed Metallurgical problems Butts, Allison 1943 Metallurgical problems Butts, Allison 1943 METALLURGICAL PROBLEMS BUTTS, ALLISON 1943 Silver--economics, metallurgy, and use Butts, Allison 1975