Bob Klahn · Bob Klein · Bob Kulhan · Linda & Bob Kalian
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Best Free Things for Seniors, The All-New Edition | 978-0-934968-22-5 (0-934968-22-5) | 2006 | Linda Kalian |
| The Best Free Things For Seniors | 978-0-934968-21-8 (0-934968-21-7) | 2003 | " |
| The Best Free Things in America 16th Edition | 978-0-934968-20-1 (0-934968-20-9) | 2003 | " |