| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| He's Just Not Up for It Anymore: Why Men Stop Having Sex, and What You Can Do About It | 978-0-06-119203-6 (0-06-119203-1) | 2008 | Bob Berkowitz |
| Why Men Stop Having Sex: Men, the Phenomenon of Sexless Relationships, and What You Can Do About It | 978-0-06-119204-3 (0-06-119204-X) | 2009 | " |