000 00393pam a2200157a 44500
008 230515b1999 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGLISH
082 _a910.285
100 _aBERNHARDSEN TOR
245 _aGEOGRAPHIC INFORMATION SYSTEMS AN INTRODUCTION
250 _a2ND
260 _aNEW YORK
_bHUMAN KINETIES PUBLISHERS
_c1999
300 _a372
650 _aNULL
999 _c519520
_d519520