http://book.klll.cc/ebooks/subject/4407.opds?sort_order=release_date 2025-08-18T09:52:20Z Books about Social history -- 20th century (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-18T09:52:20Z https://book.klll.cc/ebooks/subject/4407.opds?sort_order=title Sort Alphabetically by Title 2025-08-18T09:52:20Z https://book.klll.cc/ebooks/subject/4407.opds?sort_order=downloads Sort by Popularity 2025-08-18T09:52:20Z https://book.klll.cc/ebooks/52999.opds Lihan evankeliumi: Moraalin arvostelua (Finnish) M. Hahl 2025-08-18T09:52:20Z https://book.klll.cc/ebooks/21413.opds Où va le monde? : Considérations philosophiques sur l'organisation sociale de demain (French) Walther Rathenau