| title | ISBN-13 | year of publication |
|---|---|---|
| Smart Green: How to Implement Sustainable Business Practices in Any Industry - and Make Money | 978-0-470-38779-5 | 2009 |
| Smart Green: How to Implement Sustainable Business Practices in Any Industry - And Make Money | 978-0-470-45646-0 | |
| Smart Green: How to Implement Sustainable Business Practices in Any Industry - And Make Money | 978-0-470-45647-7 | |
| Smart Green: How to Implement Sustainable Business Practices in Any Industry - And Make Money | 978-0-470-45657-6 |