Ecology of the Columbia spotted frog in northeastern Oregon
By: Evelyn L. Bull.
Contributors: Pacific Northwest Research Station (Portland, Or.)
Series: General technical report PNW -- GTR-640.; General technical report PNW -- 640.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 2005
Place of publication: [Portland, OR]
Language: eng
Number of pages: 45
Subjects: Columbia spotted frog -- Ecology -- Oregon, Eastern.; Amphibian declines -- Oregon, Eastern.
Notes: Cover title.

"July 2005."

Includes bibliographical references (p. 40-45).

Also available on the World Wide Web.