000 00328nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
245 _aImproved seed production
260 _aRome
260 _bFAO
260 _c1978
300 _a146 p.
440 _aNo. 15; FAO, Plant Production
901 _pS31296
942 _cB
_2udc
999 _c125188
_d125188