00561nam a2200181 a 450000500170000002000150001708200170003210000210004924500510007026000420012130000210016369000350018470000240021996400310024399700180027499900170029295200700030920251203110044.0  a0198233655  a910.285bBUR  aBurrough Peter A  aPrinciples of geographical information systems  aOxfordbOxford University Pressc1998  axiii,333p.c22cm  aGeographic Information systems  aMcDonnel, Rachael A  bENGLISHcd910eBOOKSfg_  a92881 LIBSS C  c76151d76151  00104070aPUbPUd1999-07-07g845.75l0o910.285 BURp92881yBK