| polski | pol-000 |
| International Auxiliary Language Association | |
| Deutsch | deu-000 | International Auxiliary Language Association |
| English | eng-000 | International Auxiliary Language Association |
| Esperanto | epo-000 | IALA |
| magyar | hun-000 | International Auxiliary Language Association |
| interlingua | ina-000 | International Auxiliary Language Association |
| italiano | ita-000 | International Auxiliary Language Association |
| bokmål | nob-000 | The International Auxilliary Language Association |
| svenska | swe-000 | International Auxiliary Language Association |