Aldine Transaction · Enke Ferdinand · Gerald Duckworth & Co Ltd · Prentice Hall
| title | ISBN-13 | year of publica- tion | |
|---|---|---|---|
| Klappensexualität. Homosexuelle Kontakte in der Öffentlichkeit | 978-3-432-87191-2 | 1974 | |
| Out of the Closets | 978-0-13-645325-3 | 1972 | |
| Tearoom Trade: A study of homosexual encounters in public places | 978-0-7156-0551-6 | 1970 | |
| Tearoom Trade: Impersonal Sex in Public Places | 978-0-202-30283-6 | 1975 |