Citations
Field revision diagrams one inch record sheets, 1964 - 1978, GBR/3296/Maps/CCSA.OS_L18_1, OS_L18_1. Cambridge University Library. |
|
Field revision diagrams one inch record sheets, 1964 - 1978, GBR/3296/Maps/CCSA.OS_L18_1, OS_L18_1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/244951 Accessed April 25, 2025. |