Yulin LuBooksWen hua yuan zhuoLu Jiuyuan ping zhuanZhongguo dao jia (Shi jia jiu liu cong shu)Dang dai Zhongguo qing nian wen hua yan jiu =Zhongguo yin yang jia (Shi jia jiu liu cong shu)道德經Lao Zhuang zhe xue de yi yunAuthor data: Open Library