Citations
Papers on altazimuth mounts, 1969, GBR/0180/RGO 37/987. Cambridge University Library. |
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Papers on altazimuth mounts, 1969, GBR/0180/RGO 37/987. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/104720 Accessed May 13, 2024. |