Books by Paul, Frank R. (Frank Rudolph) (sorted by popularity)
- Cosmic Castaway Carl Jacobi 38 downloads
- A voice from the inner world A. Hyatt Verrill 37 downloads
- Radio mates Benjamin Witwer 35 downloads
- The Star-Master Ray Cummings 33 downloads
- Monster of the Asteroid Ray Cummings 32 downloads
- The War-Nymphs of Venus Ray Cummings 30 downloads
- Rhythm rides the rocket Bob Olsen 20 downloads