The Darling Killer
E. M. Jones
Mwalimu in the Squared Circle
Mike Resnick
Lords of the North
Bernard Cornwell
A Funny Thing Happened on the Way to the Future: Twists and ...
Michael J. Fox
For Love of Mother-Not
Alan Dean Foster
The fires of paratime
L. E. Modesitt Jr
Project Pope
Clifford D Simak
Particle theory
Edward Bryant
Starman Jones
Robert A. Heinlein
The Martian Way and other stories
Isaac Asimov
Planet Run
Keith Laumer, Gordon R. Dickson
After Doomsday
Poul Anderson
Orphans of the Sky
Future History or "Heinlein Timeline" (23)