http://book.klll.cc/ebooks/author/42980.opds?sort_order=release_date 2025-11-15T04:28:47Z Books by Lange, Alexis Frederick Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-15T04:28:47Z https://en.wikipedia.org/wiki/Alexis_F._Lange See also: en.wikipedia 2025-11-15T04:28:47Z https://book.klll.cc/ebooks/44905.opds Outlines of Educational Doctrine Johann Friedrich Herbart