| Author: | Yrjö-Koskinen, Yrjö Sakari, 1830-1903 |
| Subject: | CB, Civilization -- History |
| Format: | Text |
| Date issued: | 2013 |
| Language: | Finnish |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Johtavat aatteet ihmiskunnan historiassa [electronic resource] / Yrjö Sakari Yrjö-Koskinen |