=LDR 00000nam a2200000ui 4500 =001 5824 =008 250530s1997\\\\xx\|||||||||||||||||eng\d =082 04$a1997 LEN =100 1\$aLennon, Ciara =245 10$aThe use of macrophytes as indicators of the trophic status of Irish lakes =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1997 =852 \\$bFreeman Library$cTheses$h1997 LEN