000 00315nam a2200121Ia 4500
008 140317s9999 xx 000 0 und d
082 _a631.53
100 _aRubenstein,Irwin
245 _aGenetic improvement of crops.
260 _aMinneapolis
_bUniv of Minneapolis Press
_c1980
300 _a242
942 _2ddc
_cBK
999 _c10540
_d10540