HarperCollins · Pergamon Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Group Theory for Social Workers: An Introduction | 978-0-08-018955-0 (0-08-018955-5) | 1977 |
| Practice of Social Work with Groups: A Systematic Approach | 978-0-04-362059-5 (0-04-362059-0) | 1985 |
| The Practice of Social Work with Groups: A Systematic Approach | 978-0-04-362060-1 (0-04-362060-4) | 1985 |