000			00443nam a2200133Ia 4500
008			220515s9999||||xx |||||||||||||| ||und||
050			_aWX 173 U54 1993
100			_aSimonett, O.V.
245		0	_agoegraphical information systems for enviroment and development
260			_aZurich _bUnited nations Enviromental Program _c1992
300			_aviii, 183p.
650			_aInformation Systems|growth & development|Evaluation Studies
942			_2lcc _cBK
999			_c2116 _d2116