Artemis & Winkler · Buchergilde Gutenberg · HarperCollins
| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Africa | 978-0-00-211010-5 | 1969 | ||
| Soviet Union | 978-0-06-013818-9 | 1972 | ||
| Swiss Panorama. | 978-3-7608-0583-2 | 1990 | Emil. Egli | |
| Swiss Panorama | 978-3-905485-06-6 | 1985 | ||