| Deutsch | deu-000 |
| Nikolai Konstantinowitsch Kruglow | |
| eesti | ekk-000 | Nikolai Kruglov seenior |
| English | eng-000 | Nikolay Konstantinovich Kruglov |
| français | fra-000 | Nikolay Kruglov Sr. |
| bokmål | nob-000 | Nikolaj Kruglov |
| русский | rus-000 | Николай Константинович Круглов |