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International Precious Metals Institute, Metals and Materials Society. Copper Minerals, a Metals and Materials Society. Meeting Minerals. Precious Metals '89: Proceedings of an International Symposium Sponsored by the Copper, Nickel, Cobalt, and Precious Metals Committee of the Minerals, Metals & Materials Society and the International Precious Metals Institute Held at the TMS Annual Meeting, Las Vegas, Nevada, February 27-March 2, 1989. Warrendale, Pa: TMS, 1989.

International Precious Metals Institute, et al. Precious Metals '89: Proceedings of an International Symposium Sponsored by the Copper, Nickel, Cobalt, and Precious Metals Committee of the Minerals, Metals & Materials Society and the International Precious Metals Institute Held at the TMS Annual Meeting, Las Vegas, Nevada, February 27-March 2, 1989. TMS, 1989.