Goulart, Ron
Chronological Checklist
Series – as by Con Steffanson
- Flash Gordon: The Lion Men of Mongo (New York: Avon Books, 1974) as by Con Steffanson
- Flash Gordon: The Plague of Sound (New York: Avon Books, 1974) as by Con Steffanson
- Flash Gordon: The Space Circus (New York: Avon Books, 1974) as by Con Steffanson