=LDR 00000nam a2200000ui 4500 =001 1951 =008 250530s1991\\\\xx\|||||||||||||||||eng\d =082 04$a526.3023 =245 00$aFrom paper maps to digital spatial analysis and modelling: an applied GIS primer =260 \\$aOttawa, Canada :$bInstitute for GIS in Education,$c1991 =852 \\$bFreeman Library$cBooks$h526.3023