# Sergei Efron

> officer of the White Army; Russian and Soviet publicist, writer, NKVD agent (1893–1941)

**Wikidata**: [Q966249](https://www.wikidata.org/wiki/Q966249)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sergei_Efron)  
**Source**: https://4ort.xyz/entity/sergei-efron


## References

1. Source
2. general catalog of BnF
3. Virtual International Authority File
4. Freebase Data Dumps. 2013
5. Integrated Authority File
6. [LIBRIS. 2012](https://libris.kb.se/katalogisering/tr58cz2c4n0vglp)
7. Sejm-Wielki.pl