000 00626cab a2200217 4500
001 ABS44446
008 090401t1991 xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u47150
041 _aeng
245 _aOS bicentenary
260 _c1991
350 _a0
490 _aLand & Minerals Surveying
_v9(4) April 1991, 23 pages (LOAN)
520 _aSupplement to celebrate the Ordnance Survey `s bicentenary ; follows the progress of the OS to today`s mapping technology.
650 _aDIGITAL MAPPING
650 _aGPS
650 _aHISTORY
690 _aMAPPING AND MEASUREMENT
942 _n0
948 _c04/03/1997
999 _c29740
_d29740