=LDR 00000nam a2200000ui 4500 =001 914 =008 250530s1994\\\\xx\|||||||||||||||||eng\d =082 04$a1994 LEN =100 1\$aLenehan, Laura =245 10$aComparison of some standard freshwater pollution indices with particular reference to the abundance-biomass comparison (ABC) method derived for subtidal marine benthos, using samples from the River Camac =260 \\$c1994 =852 \\$bFreeman Library$cTheses$h1994 LEN$zNot located