L. R. · L. Robertson · Leigh-R
| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Conflict and Dispute Resolution: A Guide for Practice | 978-0-19-555842-5 (0-19-555842-1)  | 2007 | Mieke Brandon | 
| Southern Rocky Mountain Wildflowers: A Field Guide to Wildflowers in the Southern Rocky Mountains, including Rocky Mountain National Park | 978-0-7627-8478-3 (0-7627-8478-4)  | 2015 | Christine Kassar | 
| Southern Rocky Mountain Wildflowers: Including Rocky Mountain National Park | 978-1-56044-624-8 (1-56044-624-2)  | 1999 | |
FalconGuides · Globe Pequot · Oxford University Press