Answer: POHL
The answer POHL has 20 possible clues. See the results below.
Possible Clues:
- Sci-fi writer Frederik
- Sci-fi author Frederik
- Science fiction writer Frederik
- Science fiction author Frederik
- Four-time Hugo winner Frederik
- "Man Plus" author Frederik
- Nebula Award winner Frederik
- Sci-fi author Frederick ___
- 1976-77 Nebula Award winner Frederik
- 1960s Galaxy Science Fiction editor Frederik