000 00291nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aWalden (David B) Ed
245 0 _aMaize breeding and genetics
260 _bApplied Science London
260 _c1978
365 _b49.25
942 _cBK
999 _c203643
_d203643