| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Greenopia, Chicago: Eat, Shop, Live Green: The Definitive Guide to More Than 1,300 Eco-Friendly Businesses and Resources | 978-0-9785064-5-2 (0-9785064-5-6) | 2010 |
| Greenopia, New York City: The Definitive Guide to More Than 1,300 Eco-Friendly Businesses and Resources | 978-0-9785064-4-5 (0-9785064-4-8) | 2008 |
| Greenopia: The Urban Dweller's Guide to Green Living Los Angeles | 978-0-9785064-0-7 (0-9785064-0-5) | 2006 |