| 其他書名 | Air Resource Management Monitoring Program : Sawtooth National Recreation Area, Sawtooth National Forest |
| 出版 | USDA Forest Service, Intermountain Region, Sawtooth National Forest, 1992 |
| URL | http://books.google.com.hk/books?id=JGbYuQEACAAJ&hl=&source=gbs_api |