http://book.klll.cc/ebooks/subject/7598.opds?sort_order=title 2025-08-09T17:51:54Z Books about Geometry -- Famous problems (sorted alphabetically) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-09T17:51:54Z https://book.klll.cc/ebooks/subject/7598.opds?sort_order=release_date Sort by Release Date 2025-08-09T17:51:54Z https://book.klll.cc/ebooks/subject/7598.opds?sort_order=downloads Sort by Popularity 2025-08-09T17:51:54Z https://book.klll.cc/ebooks/26839.opds Mathematical Recreations and Essays W. W. Rouse Ball 2025-08-09T17:51:54Z https://book.klll.cc/ebooks/36547.opds Seven Follies of Science [2nd ed.] John Phin