Citations
Conventional signs cards GSGS 4041, 4414 (1:25,000), GBR/3296/Maps/CCSA.IM_L149_4, IM_L149_4. Cambridge University Library. |
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Conventional signs cards GSGS 4041, 4414 (1:25,000), GBR/3296/Maps/CCSA.IM_L149_4, IM_L149_4. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/246391 Accessed November 16, 2024. |