Del Martia, Astron
Chronological Checklist
- The Trembling World (London: S D Frances, 1949) by John Russell Fearn
- Space Pirates (London: Gaywood Press, 1951) by Franz Harkon
- Dawn of Darkness (London: Gaywood Press, 1951)
- Interstellar Espionage (London: Gaywood Press, 1952) by Franz Harkon
- One Against Time (London: Moring, 1954) by Stephen Frances writing as Hank Janson
- One Against Time (London: Mayflower, 1969) as by Astron del Martia