R.K. ยท R. Klinger
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Positive Postnatal Fitness - A Complete Post Pregnancy Workout | 978-0-9664443-1-5 (0-9664443-1-0) | 1999 | |
| Positive Prenatal Fitness - A Complete Pregnancy Workout | 978-0-9664443-0-8 (0-9664443-0-2) | 1998 | Aileen Sheron |