Shellito, Bradley A. Discovering gis and arcgis / Bradley A. Shellito. - USA : W.H. Freeman & Company, c2015. - 573 p. ill. ; Includes index. Includes glossary and index. ISBN: 9781464145209 (pbk.) Subjects--Topical Terms: Geographic information systems. Dewey Class. No.: 910.285 / SHE