000			00690cab a2200229 4500
001			ABS39725
008			090401t1988 xxu||||| |||| 00| 0 eng d
035			_a(Sirsi) u18609
041			_aeng
100			_aHoulton, J.
245			_aMapping out the methane sites
260			_c1988
350			_a0
490			_aSurveyor (PWW) _v170(5013) 22 September 1988, 18-20(3)
520			_aDescribes Humberside County Council `s contour mapping computer system which it is using to monitor the problems of methane gas on landfill sites more closely.
650			_aCOMPUTER AIDED DESIGN
650			_aCOMPUTERS
650			_aMOSS
690			_aLAND
942			_n0
948			_c04/03/1997
999			_c12384 _d12384