Flash Gordon (David Hagberg Series)
Titles (6)
| # | Title | Author(s) | Year | Type |
|---|---|---|---|---|
| 1 | Massacre in the 22nd Century | David Hagberg | 1980 | |
| 2 | War of the Citadels | David Hagberg | 1980 | |
| 3 | Crisis on Citadel II | David Hagberg | 1980 | |
| 4 | Forces from the Federation | David Hagberg | 1981 | |
| 5 | Citadels Under Attack | David Hagberg | 1981 | |
| 6 | Citadels on Earth | David Hagberg | 1981 |