| 其他書名 | An Elementary Treatise in which the Conic Sections are Defined as the Plane Sections of a Cone, and Treated by the Method of Projections |
| 出版 | Macmillan, 1872 |
| URL | http://books.google.com.hk/books?id=hVY7AQAAIAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |