| title | ISBN-13 | year of publication | |
|---|---|---|---|
| Advice to Men | 978-0-352-31247-1 | 1983 | |
| Advice to Women | 978-0-352-31246-4 | 1983 | |
| Die Enthüllungen eines Seelenarztes | 978-3-426-02527-7 | 1991 | |
| Group Sex: Historical, Literate and Artistic Study of Group Sex | 978-0-903651-02-8 | 1972 |
Droemer Knaur · Modern Age Publishers Ltd. · Star