Facts on File · Scarecrow Press
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| A Brief History of Ireland | Hardcover | 978-0-8160-7516-4 | 2009 |
| A Brief History of Ireland | Paperback | 978-0-8160-7517-1 | 2009 |
| Historical Dictionary of Brussels | Hardcover | 978-0-8108-7920-1 | 2015 |
| Historical Dictionary of Brussels | " | 978-0-8108-5075-0 | 2004 |