Books on Demand Gmbh · Forgotten Books · Kessinger Publishing, LLC · University of Nebraska Press · Wesleyan
| title | media type | ISBN-13 | year of publica- tion | |
|---|---|---|---|---|
| Death And Its Mystery Before Death: Proofs Of The Existence Of The Soul | Paperback | 978-1-4254-9401-8 | 2006 | |
| Die Mehrheit bewohnter Welten | Taschenbuch | 978-3-8334-0882-3 | 2004 | |
| Lumen | Library Binding | 978-0-8195-6567-9 | 2002 | |
| Lumen | Paperback | 978-0-8195-6568-6 | 2002 | |
| Omega; The Last Days of the World | " | 978-1-4400-3494-7 | 2009 | |
| Omega: The Last Days of the World | " | 978-0-8032-6898-2 | 1999 |