| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| The Formula: Unlocking the Secrets to Raising Highly Successful Children | Paperback | 978-1-950665-10-5 (1-950665-10-0) | 2020 | Ronald F. Ferguson |
| The Formula: Unlocking the Secrets to Raising Highly Successful Children | Hardcover | 978-1-946885-06-7 (1-946885-06-1) | 2019 | " |