# Soyuz 21

> crewed flight of the Soyuz programme

**Wikidata**: [Q426781](https://www.wikidata.org/wiki/Q426781)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Soyuz_21)  
**Source**: https://4ort.xyz/entity/soyuz-21


## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013
3. [Source](http://www.spacefacts.de/mission/english/soyuz-21.htm)