000 00526nam a2200169Ia 4500
008 130223s9999 xx 000 0 und d
080 _a631.588.8:338.9(1-77)
100 _aArntzen, Jaap
245 _aNatural resource management and sustainable agriculture: policy implications for
260 _aThe Hague, The Netherlands
260 _bInternational Service for National Agricultural Research
260 _c1993
300 _a36p.
440 _aNo.93-02; ISNAR Discussion Pap
901 _pS44179
942 _cB
_2udc
999 _c128153
_d128153