Citations
George Barnard on perpetual motion, 1799-07-25, GBR/0180/RGO 14/54: 22-24. Cambridge University Library. |
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George Barnard on perpetual motion, 1799-07-25, GBR/0180/RGO 14/54: 22-24. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110430 Accessed November 28, 2024. |