00298nam a2200109Ia 4500100003000000654002700030245006100057260003300118082001700151300000800168546001200176  aLo/C.P/ Yeung/Albert K.W   ageographic information  aConcepts and techniques of Geographic information system  bPrentice Hall of Indiac2002  a658.4038bLO  a492  aENGLISH