Sappington, Nancy, ed. Geography and GIS-Sustaining our world - [Redlands, Estados Unidos] ESRI 2002 - 120 p. 28 cm - ESRI Map Book ; 17 . ISBN: 1-58948-048-1 Subjects--Topical Terms: MAPAS DIGITALESSISTEMAS DE INFORMACION GEOGRAFICA Dewey Class. No.: 910.285/Sa69g