=LDR 22 4500 =001 6579 =082 04$a1996 O'R =100 1\$aO Riain, Gearoid =245 10$aThe development of indices to coastal erosion utilising a Geographical Information System =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1996 =650 \0$aTheses =852 \\$bFreeman Library$h1996 O'R