=LDR 22 4500 =001 4565 =082 04$a551.701 WAL =100 1\$aWalker, M. J. C. =245 10$aQuaternary dating methods =260 \\$aChichester :$bWiley,$c2005 =650 \0$aBooks =852 \\$bFreeman Library$h551.701 WAL