000 00677cam a2200193 4500
001 D15802
008 090401t xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u25253
041 _aeng
050 _a526.3
100 _aAllan, A.L.
245 _aPosition fixing by transit doppler: its computational procedures simplified. Land Surveyors General Meeting 13 April 1972
300 _a12p. diags. graph. bibliog
350 _a0
520 _aFiled in Archives Box 1972/30 A; Unpublished paper, reference L1/4/72/2. 9p in duplicated manuscript, 3p in duplicated typescript
710 _aRoyal Institution of Chartered Surveyors
_94900
942 _n0
948 _c04/03/1997
999 _c88702
_d88702