| Code | Description | Items |
|---|---|---|
| 300 | Social sciences | 3774 |
| 310 | General statistics | 40 |
| 320 | Political science | 4153 |
| 330 | Economics | 3866 |
| 340 | Law | 898 |
| 350 | Public administration | 518 |
| 360 | Social services; association | 1876 |
| 370 | Education | 1544 |
| 380 | Commerce, communications, transport | 301 |
| 390 | Customs, etiquette, folklore | 922 |