| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Steppes: The Plants and Ecology of the World's Semi-arid Regions | 978-1-6O469-465-9 (1-6O469-465-3) | 2015 | Michael Bone · Dan Johnson · Mike Kintgen · Larry G. Vickerman · Denver Botanic Gardens |