# Introductory

> London: Macmillan and Co., 1880.

**Wikidata**: [Q51495915](https://www.wikidata.org/wiki/Q51495915)  
**Source**: https://4ort.xyz/entity/introductory-q51495915


## References

1. Biodiversity Heritage Library
2. Internet Archive
3. Library of Congress Online Catalog
4. [Fatcat](https://api.fatcat.wiki/v0/release/lyuqxot7avd6lbm7oddurpjgcm)