Citations
Peking Observatory: Jesuit instruments etc., 1946 - 1984, GBR/1928/NRI/SCC2/73/4. Needham Research Institute. |
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Peking Observatory: Jesuit instruments etc., 1946 - 1984, GBR/1928/NRI/SCC2/73/4. Needham Research Institute. https://archivesearch.lib.cam.ac.uk/repositories/21/archival_objects/334051 Accessed July 01, 2024. |