000 00260nam a2200109Ia 4500
008 191031s9999 xx 000 0 und d
100 _aMichael Pease
245 0 _aSex-Linkage in poultry breeding
260 _bH.M.S.O. London
260 _c1952
942 _cBK
999 _c194961
_d194961