http://book.klll.cc/ebooks/subject/7598.opds?sort_order=release_date 2025-08-15T13:58:37Z Books about Geometry -- Famous problems (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 2025-08-15T13:58:37Z https://book.klll.cc/ebooks/subject/7598.opds?sort_order=title Sort Alphabetically by Title 2025-08-15T13:58:37Z https://book.klll.cc/ebooks/subject/7598.opds?sort_order=downloads Sort by Popularity 2025-08-15T13:58:37Z https://book.klll.cc/ebooks/36547.opds The Seven Follies of Science [2nd ed.] John Phin 2025-08-15T13:58:37Z https://book.klll.cc/ebooks/26839.opds Mathematical Recreations and Essays W. W. Rouse Ball