=LDR 22 4500 =001 3579 =082 04$a2000 CAS =100 1\$aCaswell, Paul =245 10$aThe Marble Arch show cave: an investigation =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c2000 =650 \0$aDissertations =852 \\$bFreeman Library$h2000 CAS