颁布单位:[University of the Free State] |
颁布时间:2015 |
实施时间:2015 |
学科分类:[["Coal, mines, and, mining--Environmental, aspects--South, Africa--Waterberg","Coalfields--South, Africa--Waterberg","Thesis, (Ph.D., (Institute, for, Groundwater, Studies))--University, of, the, Free, State,, 2015"]]