000 00345nam a2200121Ia 4500
005 20251007104418.0
008 251006s9999 xx 000 0 und d
100 _adorfman,robert
245 0 _a.models for managing regional water qualitybdorfman,robert
260 _a1st ed. | .Cambridge,Mass.bHarvard University
260 _c1972
942 _cBOK
999 _c6626
_d6626