000 00329nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aNitzsche (Werner) and Wengel (Gerhard)
245 0 _aAdvances in Plant Breeding. No.8 (Haploids in Plant Breeding)
260 _bPaul Parey
260 _c1977
365 _b47
942 _cBK
999 _c210959
_d210959