# Field test with a toxic soil constituent : vanillin

> Washington, D.C.: U.S. Dept. of Agriculture, 1915.

**Wikidata**: [Q51385208](https://www.wikidata.org/wiki/Q51385208)  
**Source**: https://4ort.xyz/entity/field-test-with-a-toxic-soil-constituent-vanillin


## References

1. Biodiversity Heritage Library
2. Internet Archive
3. Source