000 00291nam a2200109Ia 4500
008 160710s1997 xx 000 0 und d
100 _aLAENEN,A AND DUNNETTE,DA
245 _aRIVER QUALITY DYNAMICS & RESTORATION
260 _bLEWIS PUBLICATIONS
_c1997
300 _a463; 463
942 _2ddc
_cB
999 _c57452
_d57452