| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A-HA! Performance: Building and Managing a Self-Motivated Workforce | 978-0-470-11634-0 (0-470-11634-X) | 2007 | Stephen Sorkin |
| douglas walker sculpture | 978-1-320-52810-8 (1-320-52810-4) | 2013 | |
| The Official Rock Paper Scissors Strategy Guide | 978-0-7432-6751-9 (0-7432-6751-6) | 2004 | Graham Walker |
D.W. · D. Walker · Douglas C. Walker · Douglas M. M. Walker · Douglas M. Walker · Douglas W. · J, Douglas Walker · J. Douglas Walker and Harvey A. Cohen
Blurb · Simon & Schuster · Wiley