# Walter Schumann

Canonical: https://www.bookquiver.com/walter-schumann

JSON version (same data): https://www.bookquiver.com/walter-schumann.json

- Books: 1
- Languages: 2

## Books

- [Gemstones of the World](https://www.bookquiver.com/walter-schumann/gemstones-of-the-world) — 2013-07-18