Extractive metallurgy of nickel & cobalt : proceedings of a symposium sponsored by the CuNico and Non-Ferrous Pyrometallurgy Connittees of the Metallurgical Society, at the 117th TMS Annual Meeting, Phoenix, Arizona, January 25-28, 1988 / edited by G.P. Tyroler and C.A. Landolt. Warrendale, Pa. : Metallurgical Society, c1988. xi, 563 p. : ill.