http://book.klll.cc/ebooks/author/53980.opds?sort_order=release_date 2025-11-19T06:15:58Z Books by Szitnyai, Elek Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-19T06:15:58Z https://hu.wikipedia.org/wiki/Szitnyai_Elek See also: hu.wikipedia 2025-11-19T06:15:58Z https://book.klll.cc/ebooks/66826.opds A szellemi erők gyüjtése és pazarlása (Hungarian) Elek Szitnyai