The Theory And Practice Of Time Travel
Larry Niven
Killing Me
Michelle Gagnon
Angular Architecture Patterns
Matt Vaughn
Pratchett, Terry - Discworld 07
Pyramids
Triplanetary
E. E. 'Doc' Smith & Edward E. Smith Ph. D.
Spacehounds of IPC
E.E. 'Doc' Smith
Masters of Space
E.E. 'Doc' Smith, E. Everett Evans
The Galaxy Primes
E. E. 'Doc' Smith & Ph. D. Edward E. Smith
The Door Through Space
Marion Zimmer Bradley
The Colors of Space