http://book.klll.cc/ebooks/author/43081.opds?sort_order=release_date 2025-11-19T08:03:31Z Books by Fibonacci, Leonardo Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-19T08:03:31Z https://en.wikipedia.org/wiki/Isabella_Fyvie_Mayo See also: en.wikipedia 2025-11-19T08:03:31Z https://book.klll.cc/ebooks/38640.opds Euclid's Book on Divisions of Figures Euclid, Raymond Clare Archibald, Franz Woepcke, and Leonardo Fibonacci