| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Natural Standard Herb & Supplement Guide: An Evidence-Based Reference | 978-0-323-07295-3 (0-323-07295-X) | 2010 | |
| Natural Standard Medical Conditions Reference: An Integrative Approach | 978-0-323-06405-7 (0-323-06405-1) | 2008 | Catherine Ulbricht PharmD |