=LDR 22 4500 =001 734 =082 04$a1976 DUR =100 1\$aDurrant, Paul M. =245 10$aThe cirque: a special case in mountain basin hydrology =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1976 =650 \0$aDissertations =852 \\$bStaff Coffee Room$h1976 DUR