| Author: | Biggers, Earl Derr, 1884-1933 |
| Subject: | PS, World War, 1914-1918 -- Fiction, Spy stories |
| Format: | Text |
| Date issued: | 2017 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Inside the Lines [electronic resource] / Earl Derr Biggers |