Hierarchical subdivisions of the Columbia Plateau and Blue Mountains ecoregions, Oregon and Washington
By: Sharon E. Clarke and Sandra A. Bryce, editors
Contributors: Pacific Northwest Research Station (Portland, Or.)
Series: General technical report PNW -- GTR-395; General technical report PNW -- 395.
Publisher: United States Department of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1997
Place of publication: Portland, Oregon
Language: eng
Number of pages: 114
Subjects: Ecosystem management; Ecological regions
Notes: Title from title screen (viewed Mar. 18, 2014).

"September 1997."

Includes bibliographical references.