Clarke, Keith C., 1955- Getting started with geographic information systems / Keith C. Clarke. - 5th ed. - Upper Saddle River, N.J. : Prentice Hall c2011. - xi, 369 p. : ill. chiefly col., maps ; 25 cm. include index ISBN: 9780131494985 0131494988 LCCN: 2009041842 Subjects--Topical Terms: Geographic information systems. LC Class. No.: 910.285 / .C57 2011 Dewey Class. No.: 910.285