http://book.klll.cc/ebooks/subject/10046.opds?sort_order=release_date 2025-08-10T08:48:30Z Books about Conic sections (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-10T08:48:30Z https://book.klll.cc/ebooks/subject/10046.opds?sort_order=title Sort Alphabetically by Title 2025-08-10T08:48:30Z https://book.klll.cc/ebooks/subject/10046.opds?sort_order=downloads Sort by Popularity 2025-08-10T08:48:30Z https://book.klll.cc/ebooks/29913.opds Conic Sections: Treated Geometrically W. H. Besant 2025-08-10T08:48:30Z https://book.klll.cc/ebooks/17204.opds Researches on curves of the second order George Whitehead Hearn