000 00331nam a2200133Ia 4500
008 221221s9999 xx 000 0 und d
020 _a9781853838569
041 _aENG
100 _aNorman Uphoff
245 0 _aAgroecological Innovations
260 _bRoutledge
_c2002
650 _aTechnology & Engineering / General
942 _cEB
999 _c1189
_d1189