Citations
GSGS (Air) 112 International Aeronautical Maps of the World : Conventional Signs for the base maps, 1921-03, GBR/3296/Maps/CCSA.IM_L24_57, IM_L24_57. Cambridge University Library. |
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GSGS (Air) 112 International Aeronautical Maps of the World : Conventional Signs for the base maps, 1921-03, GBR/3296/Maps/CCSA.IM_L24_57, IM_L24_57. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240783 Accessed November 16, 2024. |