000 00298nam a2200121Ia 4500
008 230929s9999 xx 000 0 und d
020 _a'9780199297542
090 _a578.6
100 0 _aDOBSON .MICHAEL
245 0 0 _aECOLOGY OF AQUATIC SYSTEM
260 _aU.S
_bOXFORD
_c2010
650 0 _aMATH/SCIENCE
999 _c2708
_d2708