Citations
GS branch technical instruction no 78. First order field astronomy, 1975-08, GBR/3296/Maps/CCSA.FJ_204_5, FJ_204_5. Cambridge University Library. |
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GS branch technical instruction no 78. First order field astronomy, 1975-08, GBR/3296/Maps/CCSA.FJ_204_5, FJ_204_5. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/246142 Accessed November 14, 2024. |