=LDR 22 4500 =001 4991 =082 04$a1998 BER =100 1\$aBergin, Pamela =245 10$aSewage sludge strategy for County Sligo =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1998 =650 \0$aTheses =852 \\$bFreeman Library$h1998 BER