By Silverberg, Robert
By Robert Asprin
By Greg Bear
By Robert Sheckley
By Philip K. Dick
By Harry Harrison
By Arthur C. Clarke
By Orson Scott Card
By Lee, Tanith
By Morrow, James
By Wheatley, Dennis
By Aldiss, Brian
By Turtledove, Harry
By Dick, Philip K., Philip K. Dick
By Ronson, Mark
By Kurtz, Katherine
By Hamilton, Edmond, Hamilton, Edmond, Hamilton, Edmond
By Bradley, Marion Zimmer, Zimmer, Paul Edwin
By Bradley, Marion Zimmer