| Type |  Book |
| ชื่อเรื่อง | Hierarchical subdivisions of the Columbia Plateau and Blue Mountains ecoregions, Oregon and Washington / Sharon E. Clarke and Sandra A. Bryce, editors |
| พิมพลักษณ์ | Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1997 |
| รูปเล่ม | 114 p. : maps ; 28 cm |
| หัวเรื่อง | Biotic communities --Blue mountains (Or. and wash.) [] |
| | Biotic communities --Columbia plateau [] |
| | Ecosystem management --Blue mountains (Or. and wash.) [] |
| | Ecosystem management --Columbia plateau [] |