颁布单位:[University of the Free State] |
颁布时间:1985 |
实施时间:1985 |
学科分类:[["Agriculture, --, Economic, aspects, --, South, Africa, --, Free, State","Shifting, agriculture, --, South, Africa, --, Free, State","Dissertation, (M.Sc.Agric., (Agricultural, Economics))--University, of, the, Free, State,, 1985"]]