Books by Paul, Frank R. (Frank Rudolph) (sorted by popularity)
- Radio mates Benjamin Witwer 59 downloads
- The Flame Breathers Ray Cummings 58 downloads
- A voice from the inner world A. Hyatt Verrill 56 downloads
- Ice Planet Carl Selwyn 55 downloads
- The War-Nymphs of Venus Ray Cummings 55 downloads
- When the moon fell Morrison Colladay 55 downloads
- In Caverns Below Stanton A. Coblentz 54 downloads