| Author: | Harness, Charles L., 1915-2005 |
| Subject: | PS, Science fiction, Short stories, Inventions -- Fiction |
| Format: | Electronic text |
| Date issued: | 2007 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Professional Approach [electronic resource] / Charles L. Harness |