This report details how coal from the No. 5 seam in the Witbank colliery was tested for washability and related characteristics.
Reference:
La Grange, C. & Wolmarans, J. 1950. Washability and other characteristics of coal from the No. 5 seam, South Witbank colliery. http://hdl.handle.net/10204/13064 .
La Grange, C., & Wolmarans, J. (1950). Washability and other characteristics of coal from the No. 5 seam, South Witbank colliery Retrieved from http://hdl.handle.net/10204/13064
La Grange, CC, and JJ Wolmarans Washability and other characteristics of coal from the No. 5 seam, South Witbank colliery. 1950. http://hdl.handle.net/10204/13064
La Grange C, Wolmarans J. Washability and other characteristics of coal from the No. 5 seam, South Witbank colliery. 1950 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/13064