| Author: | De Vet, Charles V., 1911-1997 |
| Subject: | PS, Short stories, Science fiction |
| Format: | Text |
| Date issued: | 2009 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Vital Ingredient [electronic resource] / Charles V. De Vet |