| 其他書名 | Cowlitz, Lewis, and Skamania Counties, Washington : Final Environmental Impact Statement |
| 出版 | U.S. Department of Agriculture, Forest Service, Pacific Northwest Region, 1981 |
| URL | http://books.google.com.hk/books?id=FfITAAAAYAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |