Federations
John Joseph Adams
Brainship (1.50)
Recruit
James David Victor
Jack Forge, Fleet Marine (1)
Zone of the Interior
Clancy Sigal
Turtle Recall: The Discworld Companion . . So Far
Terry Pratchett
Discworld Companion Books (1)
The Number of the Beast: A Parallel Novel About Parallel Universes
Robert A. Heinlein
The World As Myth (2)