000 00269nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aTideman (EM)
245 0 _aWatershed management
260 _bOmega scienthfic
260 _c1996
365 _b600
942 _cBK
999 _c221486
_d221486