000 00331nam a2200133Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aOrwin, C S
245 0 _aOpen fields.
260 _bCLARENDAN PRESS
_aOXFORD
_c1954
300 _a174 p p.
653 _aAGRICULTURE
942 _c1
999 _c46053
_d46053