000 00264nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aR.W. ALLARD
245 0 _aPRINCIPLES OF PLANT BREEDING
260 _bNil
260 _c1960
365 _b0.00
942 _cBK
999 _c163572
_d163572