Source Information
Hua, Hengfang 華蘅芳
,
Hua shi Zhong xi suan xue quan shu 華氏中西祘學全書
,
Guangxu ding you [1897] 光緒丁酉
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Chinese Academy of Sciences, Institute for the History of Natural Sciences
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Chinese Academy of Sciences, Institute for the History of Natural Sciences
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Chinese Academy of Sciences, Institute for the History of Natural Sciences
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