Clarke, Keith C. Getting started with geographic information systems / Keith C. Clarke - 4a ed. - Saddle River, New Jersey, Prentice Hall, c2003 - xii, 340 p. : il. ; 25 cm. - Prentice Hall Series in Geographic Information Sience . Incluye glosario e índice ISBN: 0130460273 Subjects--Topical Terms: Sistemas de información geográfica LC Class. No.: G70.212 / C53 2003