| Author: | Westerman, Percy F. (Percy Francis), 1876-1959 |
| Subject: | PZ, War stories, World War, 1914-1918 -- Naval operations -- Juvenile fiction, Helgoland (Germany) -- Juvenile fiction |
| Format: | Electronic text |
| Date issued: | 2015 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Sea-girt Fortress : A Story of Heligoland [electronic resource] / Percy F. Westerman |