=LDR 00000nam a2200000ui 4500 =001 1119 =008 250530s2007\\\\xx\|||||||||||||||||eng\d =082 04$a2007 O'T =100 1\$aO'Toole, Ashley =245 10$aThe determination of the best metric/index for the biological assessment of acid mine drainage =260 \\$c2007 =852 \\$bFreeman Library$cTheses$h2007 O'T$zNot located