| Author: | Asimov, Isaac, 1920-1992 |
| Subject: | PS, Science fiction, Human-alien encounters -- Fiction |
| Format: | Text |
| Date issued: | 2010 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Youth [electronic resource] / Isaac Asimov |