000 00302nam a2200109Ia 4500
008 201217s9999 xx 000 0 und d
100 _aUnited Nations Environment Programme
245 0 _aWorld Resources 1990 - 1991 (Report)
260 _aNew York
_bOxford University Press
300 _a381
942 _cBK
999 _c8002
_d8002