000 00326nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a004.21 LO
100 _aLO (C.P.) YEUNG (ALBERT K.W.)
245 _aConcepts and Techniques of Geographic Information Systems
260 _aNew Delhi
_bPHI
365 _cRS
999 _c179005
_d179005