000 00347nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aConnaway, J.W.
245 _aPractical Control of Infectious Abortion in Cattle
260 _aColumbia
_c1923
300 _a11p.
440 _aColumbia Agricultural Experim
901 _a24569
942 _cB
_2udc
999 _c4591
_d4591