Campbell, H J
Alphabetical Checklist
- Another Space – Another Time (London: Panther Books, 1953)
- Atoms in Action (London: Panther Books, 1953) as by Roy Sheldon
- Authentic Book of Space (London: Hamilton and Co, 1954)
- Authentic Science Fiction Handbook (London: Hamilton and Co, 1954)
- Beam of Terror (London: Hamilton and Co/Authentic Science Fiction, 1951) as by Roy Sheldon
- Beyond the Visible (London: Hamilton and Co, 1952)
- Brain Ultimate (London: Panther Books, 1953)
- Chaos in Miniature (London: Hamilton and Co/Authentic Science Fiction, 1952)
- Energy Alive (London: Hamilton and Co/Science Fiction Fortnightly, 1951) as by Roy Sheldon
- Gold Men of Aureus (London: Hamilton and Co/Science Fiction Fortnightly, 1951) as by Roy Sheldon
- House of Entropy (London: Panther Books, 1953) as by Roy Sheldon
- The Last Mutation (London: Hamilton and Co/Science Fiction Monthly, 1951)
- Mammoth Man (London: Hamilton and Co, 1952) as by Roy Sheldon
- The Menacing Sleep (London: Panther Books, 1952) as by Roy Sheldon
- Mice or Machines (London: Hamilton and Co/Authentic Science Fiction, 1952)
- Moment Out of Time (London: Hamilton and Co, 1952) as by Roy Sheldon
- Moment Out of Time (London: Hamilton and Co, 1952) as by Roy Sheldon
- The Moon Is Heaven (London: Hamilton and Co/Authentic Science Fiction, 1951)
- Once Upon a Space (London: Panther Books, 1954)
- Phantom Moon (London: Hamilton and Co/Science Fiction Fortnightly, 1951) as by Roy Sheldon
- The Plastic Peril (London: Hamilton and Co/Authentic Science Fiction, 1952) as by Roy Sheldon
- The Red Planet (London: Panther Books, 1953)
- Space Warp (London: Hamilton and Co/Authentic Science Fiction, 1952) as by Roy Sheldon
- Star of Death (London: Hamilton and Co/Authentic Science Fiction, 1952) as by Roy Sheldon
- Tomorrow's Universe (London: Panther Books, 1953)
- Two Days of Terror (London: Panther Books, 1952) as by Roy Sheldon
- World in a Test-Tube (London: Hamilton and Co/Science Fiction Fortnightly, 1951)