000 00333nam a2200133Ia 4500
008 130223s9999 xx 000 0 und d
100 _aSteyn, R.
245 _aAgricultural research : Impact on beef cattle
260 _aAmes
260 _c1976
440 _aNo. 79; Iowa Agricultural Expe
901 _pS29665
942 _cB
_2udc
999 _c152121
_d152121