| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Boulder County Nature Almanac: What to See, Where and When | 978-0-87108-819-2 | 1993 | Ruth Carol Cushman · Stephen R. Jones |
| Natural Gardening | 978-0-7835-4750-3 | 1996 | Erica Glasener · Glenn Keator · Jane Scott · Sally Wasowski |
| The Xeriscape Flower Gardener: A Waterwise Guide for the Rocky Mountain Region | 978-1-55566-077-2 | 1991 | |
| WaterWise Landscaping with Trees, Shrubs, and Vines: A Xeriscape Guide for the Rocky Mountain Region, California, and Desert Southwest | 978-0-9670451-1-5 | 2005 | |
Chamisa · Johnson Books · Time Life Education · WestWinds Press