=LDR 22 4500 =001 3525 =082 04$a333.91 IRE =110 2\$aIreland Department of the Environment =245 10$aManaging Ireland's rivers and lakes: a catchment-based strategy against eutrophication =260 \\$aDublin :$bStationery Office =650 \0$aPamphlets =852 \\$bFreeman Library$h333.91 IRE