| Author: | Ennis, William D. (William Duane), 1877- |
| Subject: | TL, Aeronautics, Flying-machines |
| Format: | Text |
| Date issued: | 2016 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Flying Machines Today [electronic resource] / William D. Ennis |