Cygni Communications Ltd · Independently published
| title | ISBN-13 | year of publication |
|---|---|---|
| Roses at Dawn in an Ice Age World | 978-1-897046-42-5 | 2005 |
| The Ice Age Challenge | 978-1-897046-39-5 | 2005 |
| The Lord of the Rings' Metaphors | 978-1-897046-34-0 | 2004 |
| The Plasma Core Earth: Illustrated Science | 978-1-6875-9891-2 | 2019 |
A.F. · A. W. · F W · R. A. · R. F. · Rolf Witzsche