000 00597cam a2200193 4500
001 D11631
008 090401t1985 xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u98721
041 _aeng
050 _a526.980285
100 _aSykes, R.M.
245 4 _aThe creation of a `clean` topographic database
260 _c1985
350 _a0
520 _aIn: RICS Survey and mapping 85: the 2nd UK national land surveying and mapping conference and exhibition, University of Reading, 25 - 29 March 1985. (Paper C4). 1985/11 ABC
700 _aCrane, S.A.
942 _n0
948 _c04/03/1997
999 _c99223
_d99223