000 00469cam a2200157 4500
001 D10989
008 090401t xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u97127
041 _aeng
100 _aLeatherdale, J.D.
245 _aTowards a total surveying and mapping system
350 _a0
520 _aIn RICS et al. Survey and mapping. Conference at University of Reading, 30th March - 3 April 1981 (Paper G1) 1981/19 ABC
942 _n0
948 _c04/03/1997
999 _c98788
_d98788