http://book.klll.cc/ebooks/author/46923.opds?sort_order=release_date 2025-11-17T21:17:20Z Books by Borel, J. (Jean) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T21:17:20Z https://eo.wikipedia.org/wiki/Jean_Borel See also: eo.wikipedia 2025-11-17T21:17:20Z https://book.klll.cc/ebooks/52556.opds Esperanto-Germana frazlibro de la ĉiutaga vivo (German) (Esperanto) R. Anton and J. Borel