颁布单位:[University of the Free State] |
颁布时间:1988 |
实施时间:1988 |
学科分类:[["Calves, --, Feeding, and, feeds","Holstein-Friesian, cattle","Beef, cattle, --, Feeding, and, feeds","Dissertation, (M.Sc.Agric., (Animal, Science))--University, of, the, Free, State,, 1988"]]