Lo, C. P. 1939- Concepts and techniques in geographic information systems / C. P. Lo [and] Albert K.W. Yeung - Upper Saddle River, N.J. : Prentice-Hall, c2002 - xii, 492 p. : ill., maps ; 29 cm. - PH series in geographic information science . Includes index Library has 2 cops ISBN: 0130804274 : USD 72.50 8120322304 (c.2) Subjects--Topical Terms: Geographic information systems Dewey Class. No.: 910.285