=LDR 22 4500 =001 2054 =082 04$a910.15195 WAL =100 1\$aWalford, Nigel =245 10$aGeographical data analysis =260 \\$aChichester :$bWiley,$c1995 =650 \0$aReserve =852 \\$bFreeman Library$h910.15195 WAL