Karl E · Karl Ehler · Karl Euler · Karl H. Eller
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Integrity is All You've Got | 978-0-07-173782-1 (0-07-173782-0) | 2004 |
| Integrity is All You've Got: And Seven Other Lessons of the Entrepreneurial Life | 978-0-07-144878-9 (0-07-144878-0) | 2004 |