Citations
Gunpowder: Illustrations not used, 1954-12-15 - 1985, GBR/1928/NRI/SCC2/156. Needham Research Institute. |
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Gunpowder: Illustrations not used, 1954-12-15 - 1985, GBR/1928/NRI/SCC2/156. Needham Research Institute. https://archivesearch.lib.cam.ac.uk/repositories/21/archival_objects/330725 Accessed November 27, 2024. |