Groot, J.J.M. de.
Religion in China : universism, a key to the study of taoism and confucianism. (New York, N.Y. : G.P. Putnam, 1912). (American lectures on the history of religions. Series of 1910-1911).
https://archive.org/details/religioninchina00groogoog.
(GJ11)
Philosophy : China : Confucianism and Neoconfucianism
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Philosophy : China : Daoism
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Sinology and Asian Studies : Europe : Germany
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Sinology and Asian Studies : Europe : Netherlands