Macmillan · Oxford University Press
| title | ISBN-13 | year of publication |
|---|---|---|
| Aspects of Political Theory: Classical Concepts in an Age of Relativism | 978-0-02-977630-8 | 1976 |
| In Defence of Sovereignty | 978-0-19-631850-9 | 1969 |
| In Defense of Sovereignty | 978-0-19-501065-7 | 1987 |
| Political Thought Since World War II | 978-0-02-930630-7 | 1964 |