HarperCollins · Open University Press · Verso Books
| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| Democracy: Third Edition | Paperback | 978-0-335-20969-9 | 2002 |
| The good society;: A book of readings | Unknown Binding | 978-0-06-136054-1 | 1971 |
| Viva la Liberta!: Politics in Opera | Paperback | 978-0-86091-618-5 | 1997 |
| Viva la Liberta!: Politics in Opera | Hardcover | 978-0-86091-391-7 | 1992 |