http://book.klll.cc/ebooks/subject/22304.opds 2025-11-14T12:19:04Z Books about Geometry -- Study and teaching Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-14T12:19:04Z https://book.klll.cc/ebooks/37681.opds The Teaching of Geometry David Eugene Smith 2025-11-14T12:19:04Z https://book.klll.cc/ebooks/54300.opds Marks' first lessons in geometry Bernhard Marks