000 00323nam a2200133Ia 4500
008 230108s9999 xx 000 0 und d
100 _aMathur RBL
245 0 _aProceedings on Sustainable Land Use Systems Research
260 _bOxford & IBH
260 _c1990
365 _b345.00
650 _aAgronomy
942 _cBK
999 _c239013
_d239013