Harmon, John E. The design and implementation of geographic information systems [electronic resource] / John E. Harmon and Steven J. Anderson. - Hoboken, N.J. : J. Wiley, c2003. - 1 online resource Includes bibliographical references. ISBN: 9780471204886 9780471431527 (electronic bk.) Subjects--Topical Terms: Geographic information systems. LC Class. No.: G70.212 / .H36 2003