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A Geometrical Treatment of Curves which are Isogonal Conjugate to a Straight Line with Respect to a Triangle
Isaac Joachim Schwatt
其他書名
In Two Parts. Part First
出版Leach, Shewell, and Sanborn, 1895
URLhttp://books.google.com.hk/books?id=F4ILAAAAYAAJ&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN