| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Philosophy in Schools | Paperback | 978-1-138-30973-9 (1-138-30973-7) | 2018 |
| Philosophy in Schools | Hardcover | 978-1-138-64110-5 (1-138-64110-3) | 2016 |
| Working with Animals and Wildlife | Paperback | 978-1-84455-053-1 (1-84455-053-2) | 2005 |