| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| Who's Afraid of a Little Nitrate?: Discovering Impediments and Incentives in following Best Management Practices in the Southern Willamette Valley Groundwater Management Area | 978-3-8383-O5O9-7 (3-8383-O5O9-4) | 2009 |