TY - BOOK AU - PANG LO CHOR AU - YEUNG ALBERT K W TI - CONCEPTS AND TECHNIQUES OF GEOGRAPHIC INFORMATION SYSTEMS SN - 9.78933E+12 U1 - 910.285 PAN CY - NEW DELHI KW - GEOGRAPHICAL INFORMATION SYSTEM KW - GEOGRAPHIC INFORMATION SYSTEMS N1 - UNDER TEQIP PHASE - II ER -