# Leon Petrażycki

> Polish lawyer, philosopher, sociologist of law, ethicist and logician

**Wikidata**: [Q1818913](https://www.wikidata.org/wiki/Q1818913)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Leon_Petrażycki)  
**Source**: https://4ort.xyz/entity/leon-petra-ycki


## References

1. Integrated Authority File
2. Great Soviet Encyclopedia (1969–1978)
3. BnF authorities
4. Czech National Authority Database
5. International Standard Name Identifier
6. Virtual International Authority File
7. CiNii Research
8. Pedagogues and Psychologists of the World
9. [Source](http://pravovedenie.spbu.ru/arkhiv/category/8-2014-1.html?download=128:merezhko-a-a-ukraine-l-i-petraz-ycki-in-the-kiev-emperor-saint-vladimir-university-2)
10. [Source](https://elibrary.ru/item.asp?id=30024568)
11. Internet Philosophy Ontology project
12. Freebase Data Dumps. 2013
13. CONOR.SI
14. Sejm-Wielki.pl