颁布单位：[University of the Free State] |  颁布时间：1978 |  实施时间：1978 |  学科分类：[["Feed, utilization, efficiency","Range, management","Pastures, --, South, Africa, --, Underberg","Pastures, --, Production","Dissertation, (M.Sc., (Pasture, Science))--University, of, the, Free, State,, 1978"]]

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