Duff, Douglas V
Chronological Checklist
- The Horned Crescent (London: Hodder and Stoughton, 1936)
- Jack Harding's Quest (Glasgow, Scotland: Blackie and Son, 1939)
- Peril on the Amazon (Glasgow, Scotland: Blackie and Son, 1946)
- Atomic Valley (Glasgow, Scotland: Blackie and Son, 1947)
- The Sky Pirates (Glasgow, Scotland: Blackie and Son, 1948)
- Casper Clinton (Glasgow, Scotland: Blackie and Son, 1951) as by Peter Wickloe
- The Man from Outer Space (Glasgow, Scotland: Blackie and Son, 1953)
- The Miracle Man (London: Cassell and Company, 1953)
- Operation Sunpower (London: Cassell, 1955)
- Sea-Serpent Island (London: Thomas Nelson and Sons, 1957)
- The "San Matteo" (London: Thomas Nelson and Sons, 1957)
- The Nuclear Castle Story (London: Thomas Nelson and Sons, 1958)
- The Man from Outer Space (Glasgow, Scotland: Blackie and Son, 1962)