| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Research Methods in Clinical and Counselling Psychology | Paperback | 978-0-471-96297-7 | 1996 | Chris Barker · Robert Elliott |
| Research Methods in Clinical and Counselling Psychology | Hardcover | 978-0-471-93612-1 | 1995 | Chris Barker · Robert Elliott |
| Research Methods in Clinical Psychology: An Introduction for Students and Practitioners | Paperback | 978-1-118-77320-8 | 2015 | Chris Barker · Robert Elliott |
| Research Methods in Clinical Psychology: An Introduction for Students and Practitioners | " | 978-0-471-49089-0 | 2002 | Chris Barker · Robert Elliott |