00621nam a2200193 a 450000500170000002000140001708200170003110000220004824500510007026000420012130000240016349000470018769000370023470000250027196400260029699700180032299900170034095200700035720251203110225.0  a019233655  a910.285bBUR  aBurrough, Peter A  aPrinciples of geographical information systems  aOxfordbOxford University Pressc1998  axiii,306p.c25cm PB  aSpatial information systems and geostatics  aInformation systems-Geographical  aMcDonnell, Rachael A  bENGLISHcd910efg_  a99714 LIBSS C  c82256d82256  00104070aPUbPUd2001-04-11g871.25l0o910.285 BURp99714yBK