R. L · Ralph Liebing · Rolf Leibenguth
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Eckige Eier? Experiment, Tricks und Kniffe gegen Langeweile | 978-3-926616-08-1 (3-926616-08-3) | 1996 | Paul Temple | |
| Key issues in bioethics a guide for teachers | 978-0-203-46453-3 (0-203-46453-2) | 2003 | Michael J. Reiss | |
| Why Do Eskimos Rub Noses?: And Other Mind-boggling Questions About Human Behaviour | 978-0-09-959650-9 (0-09-959650-4) | 1989 | ||