| Code | Description | Items |
|---|---|---|
| 320 | Political science | 1586 |
| 321 | Systems of governments & states | 225 |
| 322 | Relation of state to organized groups | 288 |
| 323 | Civil & political rights | 194 |
| 324 | The political process | 1029 |
| 325 | International migration & colonization | 203 |
| 326 | Slavery & emancipation | 19 |
| 327 | International relations | 514 |
| 328 | The legislative process | 29 |