# Q115537339

> 1969 Czech book edition

**Wikidata**: [Q115537339](https://www.wikidata.org/wiki/Q115537339)  
**Source**: https://4ort.xyz/entity/q115537339


## References

1. Czech National Bibliography
2. [Works unavailable on the market](https://sdnnt.nkp.cz/sdnnt/oai?verb=ListRecords&metadataPrefix=marc21&set=DK-DNNTO)