# The Hundredfold Problem

> book by John Grant

**Wikidata**: [Q7740981](https://www.wikidata.org/wiki/Q7740981)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/The_Hundredfold_Problem)  
**Source**: https://4ort.xyz/entity/the-hundredfold-problem


## References

1. Internet Speculative Fiction Database