000 00390nam a2200133 4500
245 _aEutrophication of freshwaters : principles, problems and restoration
_cDavid Harper
100 _aHarper, David
260 _aLondon
_bChapman & Hall
_cc1992
300 _aviii, 327p.: ;ill.; 24cm.
020 _a0412329700
082 _a574.52632
_bHAR
650 _aEutrophication
650 _aLake Renewal
999 _c50441
_d50441