| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Aristotle on Plato: The Metaphysical Question. Part 1: Papers | 978-960-88183-0-9 (960-88183-0-3) | 2004 |
| Religion and Mystery | 978-960-88183-2-3 (960-88183-2-X) | 2006 |
| The Empedoclean Kosmos: Structure, Process and the Question of Cyclicity. Part 1: Papers | 978-960-88183-1-6 (960-88183-1-1) | 2005 |