| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Be a Greener Parent: A practical guide to ethical parenting and environmentally conscious family life | 978-1-4441-0386-1 (1-4441-0386-5) | 2010 |
| Be a Greener Parent: Teach Yourself | 978-1-4441-3408-7 (1-4441-3408-6) | 2010 |