Citations
Ordnance Survey information paper 3/1990. The use of satellites to produce a new national control network, 1990-04, GBR/3296/Maps/CCSA.OS_143_19/4, OS_143_19/4. Cambridge University Library. |
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Ordnance Survey information paper 3/1990. The use of satellites to produce a new national control network, 1990-04, GBR/3296/Maps/CCSA.OS_143_19/4, OS_143_19/4. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243117 Accessed November 18, 2024. |