LO, ALBERT K W YEUNG CONCEPTS AND TECHNIQUES OF GEOGRAPHIC INFORMATION SYSTEMS - 2 - PHI LEARINING PVT. LTD. 2007 - 532 ISBN: 9788120339149 Subjects--Topical Terms: GRAPHIC REPRESENTATION SURFACE OF EARTH [GIS, Atlases, Maps, Charts] Dewey Class. No.: 912 P7 LO