=LDR 22 4500 =001 4267 =082 04$a941.501 STO =100 1\$aStout, Matthew =245 10$aPlans from plans: an analysis of the 1:2500 OS series as a source for ringfort morphology =260 \\$aDublin :$bRoyal Irish Academy,$c1992 =650 \0$aPamphlets =852 \\$bFreeman Library$h941.501 STO