E.E. " · R. E. · Richard E. · Richard Eller
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Piedmont Airlines: A Complete History, 1948-1989 | 978-0-7864-6914-7 (0-7864-6914-5) | 2012 |
| Piedmont Airlines: A Complet History, 1948-1989 | 978-0-7864-3147-2 (0-7864-3147-4) | 2008 |