Jones, Neil R
Chronological Checklist
Series – Professor Jameson
- The Planet of the Double Sun (New York: Ace Books, 1967)
- The Sunless World (New York: Ace Books, 1967)
- Space War (New York: Ace Books, 1967)
- Twin Worlds (New York: Ace Books, 1967)
- Doomsday on Ajiat (New York: Ace Books, 1968)