=LDR 22 4500 =001 5138 =082 04$a551.3 PRI =100 1\$aPrior, D. B. =245 10$aSome examples of mudflow and rockfall activity in north-east Ireland =260 \\$bInstitute of British Geographers,$c1971 =650 \0$aPamphlets =700 1\$aStephens, Nicholas =700 1\$aDouglas, G. R. =852 \\$bFreeman Library$h551.3 PRI