Citations
Miniature Japanese abacus, c.1950s-1970s, GBR/1928/NRI/NRI2/8/3/2/5, Box NRI2/8/3/2/1-7. Needham Research Institute. |
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Miniature Japanese abacus, c.1950s-1970s, GBR/1928/NRI/NRI2/8/3/2/5, Box NRI2/8/3/2/1-7. Needham Research Institute. https://archivesearch.lib.cam.ac.uk/repositories/21/archival_objects/503166 Accessed November 27, 2024. |