J.B. · J. Black · Jan K. Black · Jan Knippers Black
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Better Boundaries: Owning and Treasuring Your Life | 978-1-57224-107-7 (1-57224-107-1) | 1998 | Greg Enns |
| It's Not Okay Anymore: Your Personal Guide to Ending Abuse, Taking Charge, and Loving Yourself | 978-1-57224-066-7 (1-57224-066-0) | 1997 | " |