| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Emotional Intelligence: An International Handbook | 978-0-88937-283-2 (0-88937-283-7) | 2005 | Schulze |
| Planning and Ecology | 978-0-412-28470-0 (0-412-28470-7) | 2013 | |
| Planning and ecology | 978-0-412-23560-3 (0-412-23560-9) | 1983 | |
(D-R) · D. Roberts · R.D. · R.R. · R. Roberts · Richard D. Roberts · Richard D. Roberts PhD · Richard Dean Roberts · Rob Hagen Dan Roberts · Robb, J. D. Roberts · Robert Davies Roberts · Russell D. Roberts