| Author: | Haas, Hippolyt Julius, 1855-1913 |
| Subject: | DD, Germany -- Description and travel, North Sea, Frisian Islands, Helgoland (Germany) |
| Format: | Electronic text |
| Date issued: | 2023 |
| Language: | German |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Deutsche Nordseeküste : Friesische Inseln und Helgoland. [electronic resource] / Hippolyt Julius Haas |