=LDR 22 4500 =001 4102 =082 04$a1993 BLA =100 1\$aBlake, Alison Rebecca =245 10$aPatella vulgata L., the common limpet and Nucella lapillus (L.), the common dog whelk, as indicators of copper contamination =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1993 =650 \0$aTheses =852 \\$bFreeman Library$h1993 BLA