000 00326pam a2200133 a 4500
020 _c
041 _h
100 _aChor pang Ld,
_eauthor.
245 _aConcept and techniques of Geographic Information systems
_hTextual Documents
250 _a2nd Edition.
260 _a[s.l]:
_bpearson
300 _a532.
930 _a2591
999 _c248442
_d248442