by Keith Laumer, Gordon R. Dickson
In addition to its stand-alone volume, this title was published in the follow books. It can be rated independently of any volumes containing it.
Planet Run (1982)
Collection, 287 pages
Legions of Space (2004)
by Keith Laumer
Collection, 470 pages
The 1634: The Baltic War Disk (2007)
by uncredited
Omnibus
The 1635: The Eastern Front Disk (2010)
