| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Real Fountain of Youth: Simple Lifestyle Changes for Productive Longevity | 978-0-9894649-1-8 (0-9894649-1-1) | 2014 | Mary Ellen Landolfi · Stacy Reagan |
| The Real Fountain of Youth: Simple Lifestyle Changes for Productive Longevity | 978-0-9894649-0-1 (0-9894649-0-3) | 2013 | Stacy Reagan · Mary Ellen Landolfi |