por International Symposium On Processing Of Complex Ores (1989 : Halifax, N.s.) | Dobby, Glenn Stephen, 1952- [editor] | Rao, S. Ramachandra [editor] | Metallurgical Society Of Cim. Mineral Sciences And Engineering Section | Conference of Metallurgists (28 : 1989 : Halifax, Nova Scotia).
por International Symposium on Waste Processing and Recycling in Mineral and Metallurgical Industries (3 : 1998 : Calgary, Alberta, Canada) | Rao, S. Ramachandra [editor] | Conference of Metallurgists (37 : 1998 : Calgary, Alberta, Canada).