| 其他書名 | Interpretations from 1871-1982 Photographs |
| 出版 | U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1984 |
| URL | http://books.google.com.hk/books?id=a3BGAQAAIAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |