# Concerning soils, germs, and worms

> Philadelphia,1904. | Library of Congress

**Wikidata**: [Q51458652](https://www.wikidata.org/wiki/Q51458652)  
**Source**: https://4ort.xyz/entity/concerning-soils-germs-and-worms


## References

1. Biodiversity Heritage Library
2. Internet Archive
3. Library of Congress Online Catalog