Citations
Ordnance Survey technical paper no 23. Electromagnetic distance measuring techniques in the Ordnance Survey, 1973, GBR/3296/Maps/CCSA.FJ_204_3/10, FJ_204_3/10. Cambridge University Library. |
|
Ordnance Survey technical paper no 23. Electromagnetic distance measuring techniques in the Ordnance Survey, 1973, GBR/3296/Maps/CCSA.FJ_204_3/10, FJ_204_3/10. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/246136 Accessed November 14, 2024. |