| Code | Description | Items |
|---|---|---|
| 300 | Social sciences | 3784 |
| 310 | General statistics | 40 |
| 320 | Political science | 4163 |
| 330 | Economics | 3869 |
| 340 | Law | 899 |
| 350 | Public administration | 518 |
| 360 | Social services; association | 1880 |
| 370 | Education | 1545 |
| 380 | Commerce, communications, transport | 302 |
| 390 | Customs, etiquette, folklore | 924 |