http://book.klll.cc/ebooks/author/56852.opds 2025-11-14T19:45:17Z Books by Weltner, Wilhelm Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-14T19:45:17Z https://de.wikipedia.org/wiki/Wilhelm_Weltner See also: de.wikipedia 2025-11-14T19:45:17Z https://book.klll.cc/ebooks/72951.opds Die Tier- und Pflanzenwelt des Süsswassers. Erster Band. (German) Wilhelm Weltner, Ludwig Plate, F. A. Forel, W. Migula, Friedrich Ludwig, August Gruber, and Julius Vosseler