000			00419nam a2200145Ia 45e0
008			180110s1999 xx 000 0 und d
020			_a9780139238895
082			_a910.285
100			_aClarke, Keith C
245		0	_aGetting Started with Geographic Information Systems
250			_a2nd ed.
260			_aNew Jersey _bPrentice Hall _c1999
300			_axiii, 338p
942			_2ddc _cBK
999			_c601 _d601