The investigation undertaken was mainly concerned with the latter possibility.
Reference:
La Grange, C. 1962. Full scale coking investigation of Natal coal possibly required by AMCOR for coking. http://hdl.handle.net/10204/12967 .
La Grange, C. (1962). Full scale coking investigation of Natal coal possibly required by AMCOR for coking Retrieved from http://hdl.handle.net/10204/12967
La Grange, CC Full scale coking investigation of Natal coal possibly required by AMCOR for coking. 1962. http://hdl.handle.net/10204/12967
La Grange C. Full scale coking investigation of Natal coal possibly required by AMCOR for coking. 1962 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12967