=LDR 22 4500 =001 5818 =082 04$a2004 LYN =100 1\$aLynas, Kevin =245 10$aThe use of diatoms as pollution indicators in ponds in the Phoenix Park, Dublin =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c2004 =650 \0$aTheses =852 \\$bFreeman Library$h2004 LYN