International Precious Metals Institute, Minerals, Metals and Materials Society. Copper, Nickel, Cobalt, and Precious Metals Committee, & Minerals, Metals and Materials Society. Meeting. (1989). 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.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)International Precious Metals Institute, Metals and Materials Society. Copper Minerals, và 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.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)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.