=LDR 22 4500 =001 4461 =082 04$a941.503 LYD =100 1\$aLydon, J. F. =245 10$aThe problem of the frontier in Medieval Ireland =260 \\$aWashington,PA :$bTopic,$c1967 =650 \0$aPamphlets =852 \\$bFreeman Library$h941.503 LYD$zNot located