TY - BOOK AU - LO, ALBERT K W YEUNG TI - CONCEPTS AND TECHNIQUES OF GEOGRAPHIC INFORMATION SYSTEMS SN - 9788120339149 U1 - 912 P7 LO PY - 2007/// PB - PHI LEARINING PVT. LTD. KW - GRAPHIC REPRESENTATION SURFACE OF EARTH [GIS, Atlases, Maps, Charts] ER -