Citations
Fourth Edition "Quarter Inch" Ordnance Survey maps of Great Britain [and] . Fifth Series "Quarter Inch" Ordnance Survey of Great Britain [on reverse, 1960 - 1961, GBR/3296/Maps/CCSA.OS_129_24, OS_129_24. Cambridge University Library. |
|
Fourth Edition "Quarter Inch" Ordnance Survey maps of Great Britain [and] . Fifth Series "Quarter Inch" Ordnance Survey of Great Britain [on reverse, 1960 - 1961, GBR/3296/Maps/CCSA.OS_129_24, OS_129_24. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/242916 Accessed April 30, 2025. |