Citations
Trig and levelling bulletin no 183, 1948-12, GBR/3296/Maps/CCSA.FJ_205_32/6, FJ_205_32/6. Cambridge University Library. |
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Trig and levelling bulletin no 183, 1948-12, GBR/3296/Maps/CCSA.FJ_205_32/6, FJ_205_32/6. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/246148 Accessed November 14, 2024. |