| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Critical Issues in Systems Theory and Practice | 978-1-4757-9885-2 (1-4757-9885-7) | 2013 | K. Ellis · B.R. Mears-Young · Gillian Ragsdell |
| Synergy Matters - Working with Systems in the 21st Century | 978-0-306-46186-6 (0-306-46186-2) | 1999 | Adrian M. Castell · Giles A. Hindle · Mathew E. James · Gillian Ragsdell |
A.G. · A. Gregory · A. J. · A. J. Gregory · J. G. · J. Gregory