R.K. ยท Richard O.
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Forever Fit: The Easy-to-Follow, Step-by-Step Life Plan to Improve Your Body and Mind | Paperback | 978-0-595-33945-7 (0-595-33945-X) | 2005 |
| Forever Fit: The Easy-to-Follow, Step-by-Step Life Plan to Improve Your Body and Mind | Hardcover | 978-0-595-67038-3 (0-595-67038-5) | 2005 |