http://book.klll.cc/ebooks/author/32572.opds 2025-11-18T15:46:00Z Books by Nagel, Oskar Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T15:46:00Z https://book.klll.cc/ebooks/27254.opds Die Romantik der Chemie (German) Oskar Nagel