# Project Sign

> U.S. government study of UFOs

**Wikidata**: [Q2720462](https://www.wikidata.org/wiki/Q2720462)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Project_Sign)  
**Source**: https://4ort.xyz/entity/project-sign


## References

1. Freebase Data Dumps. 2013