http://book.klll.cc/ebooks/author/34741.opds?sort_order=release_date 2025-11-18T02:07:34Z Books by Rosenkranz, Karl Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T02:07:34Z https://en.wikipedia.org/wiki/Karl_Rosenkranz See also: en.wikipedia 2025-11-18T02:07:34Z https://book.klll.cc/ebooks/30661.opds Pedagogics as a System Karl Rosenkranz