Citations
1 letter from Sun Keding [孙克定] (Institute of Systems Science, Chinese Academy of Science) to Joseph Needham, 1984-08-21, GBR/1928/NRI/NRI2/5/10/9/2/11. Needham Research Institute. |
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1 letter from Sun Keding [孙克定] (Institute of Systems Science, Chinese Academy of Science) to Joseph Needham, 1984-08-21, GBR/1928/NRI/NRI2/5/10/9/2/11. Needham Research Institute. https://archivesearch.lib.cam.ac.uk/repositories/21/archival_objects/341549 Accessed October 05, 2024. |