Federation
Titles (5)
| # | Title | Author(s) | Year | Type |
|---|---|---|---|---|
| Ullr Uprising | H. Beam Piper | 1952 | ||
| Four-Day Planet | H. Beam Piper | 1961 | ||
| Federation | H. Beam Piper | 1981 | Collection | |
| Empire | H. Beam Piper | 1981 | Collection | |
| The Rise of the Terran Federation | John F. Carr | 2017 | Anthology |