| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Canoe Theory: A Secret To Building People And Profit | 978-0-7593-5314-5 (0-7593-5314-X) | 2005 | David Hibbard · Marhnelle S. Hibbard |
| The Canoe Theory: A Secret to Building People and Profit | 978-0-7593-0557-1 (0-7593-0557-9) | 2001 | David Hibbard · Marhnelle S. Hibbard |