Citations
A large collection of index maps, conventional sign charts, romers, line gauges, colour charts, etc., by British and foreign mapping authorities of map series outside the United Kingdom, GBR/3296/Maps/CCSA.IM_L149, IM_L149. Cambridge University Library. |
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A large collection of index maps, conventional sign charts, romers, line gauges, colour charts, etc., by British and foreign mapping authorities of map series outside the United Kingdom, GBR/3296/Maps/CCSA.IM_L149, IM_L149. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240822 Accessed November 16, 2024. |