Citations
The Star Almanac for Land Surveyors, 1950 - 2009, GBR/0180/RGO 30. Cambridge University Library. |
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The Star Almanac for Land Surveyors, 1950 - 2009, GBR/0180/RGO 30. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/97342 Accessed April 25, 2024. |