Earthworms (Annelida:Oligochaeta) of the Columbia River basin assessment area
By: Sam James.
Contributors: Pacific Northwest Research Station (Portland, Or.)
Series: Interior Columbia Basin Ecosystem Management Project--scientific assessment; General technical report PNW ;; GTR-491; General technical report PNW ;; 491.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 2000
Place of publication: Portland, Or
Language: eng
Number of pages: 13
Subjects: Earthworms -- Columbia River Watershed.
Other titles: Earthworms of the Columbia River basin assessment area
Notes: Includes bibliographical references (p. 12-13).
"June 2000."
Issued also electronically via World Wide Web in PDF format.