=LDR 22 4500 =001 4755 =082 04$a551.31 DAV =100 1\$aDavidson-Arnott, R. =245 10$aResearch into glacial, glacio-fluvial and glacio-lacustrine systems: proceedings of the 6th Guelph Symposium on Geomorphology, 1980 =260 \\$aNorwich :$bGeo,$c1982 =650 \0$aBooks =852 \\$bFreeman Library$h551.31 DAV