Citations
History of copyright of Ordnance Survey publications, 1931, GBR/3296/Maps/CCSA.JHA_409_1, JHA_409_1. Cambridge University Library. |
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History of copyright of Ordnance Survey publications, 1931, GBR/3296/Maps/CCSA.JHA_409_1, JHA_409_1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240827 Accessed November 16, 2024. |