D.K · Dana Kovarsky · Dean Kuipers · Diana Küppers
Crisp Learning · Logical Operations
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Crisp: Universal Traveler | 978-1-56052-679-7 (1-56052-679-3) | 2003 | Jim Bagnall |
| The Universal Traveller: A Guide to Creativity, Problem Solving & the Process of Reaching Goals | 978-1-56052-045-0 (1-56052-045-0) | 1995 | |
| Universal Traveler | 50-Minute Manager Series | 978-1-4246-2306-8 (1-4246-2306-5) | 2014 | Jim Bagnall |