000 00327nam a2200121Ia 4500
008 141004s9999 xx 000 0 und d
040 _ca
041 _aEnglish
082 _a333.73
082 _bSU
245 _aSustainable land use systems research: proceedings of an international workshop , New delhi, 1990
942 _cBK
999 _c171702
_d171702