000 00331nam a2200133Ia 4500
008 150321s9999 xx 000 0 und d
080 _a631.52
_bPOE-B
100 _aPoehlman, John Milton
245 _aBreeding field crops
260 _c1959
_aNew York
_bHenry Holt
300 p _a427p.
650 _aField Crops
942 _cBK
_2udc
999 _c12780
_d12780