000 00297nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aArne Hagberg
245 0 _aMutations and polyploidy in Plant breeding
260 _b"Heinemann, London"
260 _c1962
365 _b31.50
942 _cBK
999 _c197374
_d197374