# An elementary class book on astronomy

> 1857 version

**Wikidata**: [Q104686957](https://www.wikidata.org/wiki/Q104686957)  
**Source**: https://4ort.xyz/entity/an-elementary-class-book-on-astronomy-q104686957


## References

1. [Source](https://archive.org/metadata/elementaryclassb00robi)