=LDR 22 4500 =001 3546 =082 04$a526.022 CAM =100 1\$aCampbell, John =245 10$aMap use and analysis =260 \\$aNew York :$bMcGraw-Hill,$c2001 =650 \0$aBooks =852 \\$bFreeman Library$h526.022 CAM