=LDR 22 4500 =001 5330 =082 04$a581.50941 WAL =100 1\$aWalker, D. =245 10$aStudies in the Vegetational History of the British Isles: essays in honour of Harry Godwin =260 \\$aLondon :$bCambridge University Press,$c1970 =650 \0$aBooks =700 1\$aWest, R. G. =852 \\$bFreeman Library$h581.50941 WAL