Citations
20 years of Soviet geodetics & cartography 1919-39', 1919 - 1939, GBR/3296/Maps/CCSA.IM_499_12, IM_499_12. Cambridge University Library. |
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20 years of Soviet geodetics & cartography 1919-39', 1919 - 1939, GBR/3296/Maps/CCSA.IM_499_12, IM_499_12. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/239994 Accessed May 15, 2025. |