http://book.klll.cc/ebooks/author/48787.opds?sort_order=downloads 2025-11-18T23:09:25Z Books by Wagner, Johannes Rudolf Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T23:09:25Z https://es.wikipedia.org/wiki/Johannes_Rudolf_von_Wagner See also: es.wikipedia 2025-11-18T23:09:25Z https://book.klll.cc/ebooks/56330.opds Handbuch der chemischen Technologie (German) Johannes Rudolf Wagner