000 00361nam a2200121Ia 4500
001 MPKV109531
008 120911s9999 xx 000 0 und d
082 _a630
245 _aJournal of Agricultural Science Vol 102 Part No.1-3
_c;
246 _aJournal of Agricultural Science Vol 100
260 _aLondon
_bCambridge University Press
_c1983
650 _aAgronomy
999 _c72867
_d72867