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T'ien-kung k'ai-wu
Ying-hsing Sung
其他書名
Chinese technology in the seventeenth century. Translated by E-tu-Zen Sun and Shiou-chuan Sun
出版Pennsylvania State University, 1966
URLhttp://books.google.com.hk/books?id=3T0B0QEACAAJ&hl=&source=gbs_api