=LDR 22 4500 =001 2286 =082 04$a526.028 CLA =100 1\$aClarke, Keith C. =245 10$aGetting started with geographic information systems =260 \\$aUpper Saddle River, NJ :$bPearson Prentice Hall,$c2011 =650 \0$aBooks =852 \\$bFreeman Library$h526.028 CLA