P.K. · Paul K · Paul R. Keys
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Operational Research and Systems: The Systemic Nature Of Operational Research | 978-1-4899-0669-4 (1-4899-0669-X) | 2013 |
| Understanding the Process of Operational Research: Collected Readings | 978-0-471-95269-5 (0-471-95269-9) | 1995 |