Citations
Notes for candidates for technical examination. Directorate of field survey, 1973, GBR/3296/Maps/CCSA.OS_125_16, OS_125_16. Cambridge University Library. |
|
Notes for candidates for technical examination. Directorate of field survey, 1973, GBR/3296/Maps/CCSA.OS_125_16, OS_125_16. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/242690 Accessed April 30, 2025. |