D D · D. Duckworth · L.D. · Lawrence Duckworth
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Primordial Leadership: Unleash the Results Animal in You...and in Others | Paperback | 978-1-61448-763-0 (1-61448-763-4) | 2014 |
| Primordial Leadership: Unleash the Results Animal in You...and in Others | Hardcover | 978-1-61448-871-2 (1-61448-871-1) | 2014 |