1. Control of Sulfur Oxide Emissions in Copper, Lead and Zinc Smelting, Bureau of Mines IC 8527 (1971).
2. T. Phillips, Economic Evaluation of a Leach Electrolysis Process for Recovering Lead from Galena Concentrates, Bureau of Mines IC 8773 (1978).
3. H. W. Parsons and G. M. Ritcey, Treatment of Complex Zinc Lead Sulphide Ores by Chloride Metallurgy, Canmet report MRP/MSL77-280(I).
4. J. E. Murphy, F. P. Haver and M. M. Wong, Recovery of Lead from Galena by a Leach Electrolysis Procedure, Bureau of Mines RI 7913.
5. M. M. Wong and F. P. Haver, Fused Salt Electrolysis for Production of Lead and Zinc Metals, in Molten Salt Electrolysis in Metal Production, Inst. Min. Metall. London (1977).