| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Softy the Poop: Helping Families Talk About Poop | 978-0-9854969-3-7 (0-9854969-3-2) | 2015 |
| The Ins and Outs of Poop: A Guide to Treating Childhood Constipation | 978-0-9854969-0-6 (0-9854969-0-8) | 2018 |
D. P. · R.D. · R. P. · T D · T.P · T. R. · Thomas D. · Thomas P. · Thomas R. · Thomas R. DuHamel