Citations
AGA geodimeter model 6A, 1967 - 1971, GBR/3296/Maps/CCSA.MOD_137_9, MOD_137_9. Cambridge University Library. |
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AGA geodimeter model 6A, 1967 - 1971, GBR/3296/Maps/CCSA.MOD_137_9, MOD_137_9. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240998 Accessed May 07, 2025. |