| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Not All Babies Wear Diapers: A Guide to Helping Your Newborn, Baby, or Toddler Be Diaper-free | 978-0-06-117619-7 (0-06-117619-2) | 1975 |
| The Diaper-Free Baby: The Natural Toilet Training Alternative | 978-0-06-122970-1 (0-06-122970-9) | 2007 |