| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Der Schlüssel zum Biorhythmus. Inkl. 1 Biorhythmus- Drehscheibe | 978-3-88034-898-1 (3-88034-898-7) | 1999 | |
| The Biorhythm Book: Plan For The Ups And Downs In Your Life | 978-1-85906-032-2 (1-85906-032-3) | 2000 | |
| The Biorhythm Kit: Plan for the Ups and Downs in Your Life | 978-1-885203-33-5 (1-885203-33-0) | 1996 |
Connections Book Publishing Ltd · Hugendubel Heinrich GmbH · Journey Editions