The FRI of SA was requested by the Director, Umgala colliery (Pty) Ltd., to take a bulk sample Umgala Colliery and to carry out washability test on it.
Reference:
Fourie, P. 1965. A report on the results obtained from washability determinations carried out on a bulk sample from Umgala colliery. http://hdl.handle.net/10204/12952 .
Fourie, P. (1965). A report on the results obtained from washability determinations carried out on a bulk sample from Umgala colliery Retrieved from http://hdl.handle.net/10204/12952
Fourie, PJF A report on the results obtained from washability determinations carried out on a bulk sample from Umgala colliery. 1965. http://hdl.handle.net/10204/12952
Fourie P. A report on the results obtained from washability determinations carried out on a bulk sample from Umgala colliery. 1965 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12952
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