000 00340nam a2200121Ia 4500
001 MPKV107328
008 120911s9999 xx 000 0 und d
082 _a630
245 _aExperimental Agriculture Vol 20
_c;
246 _aExperimental Agriculture Vol 10 No.1-4
260 _aLondon
_bCambridge University Press
_c1984
650 _aAgronomy
999 _c70702
_d70702