Citations
Korean Royal Observatory, clocks and instruments - Hyojong's time, 17th century, 1960 - 1985, GBR/1928/NRI/NRI2/2/4/2. Needham Research Institute. |
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Korean Royal Observatory, clocks and instruments - Hyojong's time, 17th century, 1960 - 1985, GBR/1928/NRI/NRI2/2/4/2. Needham Research Institute. https://archivesearch.lib.cam.ac.uk/repositories/21/archival_objects/330080 Accessed December 02, 2024. |