http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Sampling methods for amphibians in streams in the Pacific Northwest
Pacific Northwest Research Station (Portland, Or.)
1 online resource (29 pages) : illustrations, maps.
Title from PDF title screen (PNRS, viewed Aug. 25, 2009).
Includes bibliographical references (pages 21-25).
Wildlife-habitat relationships--sampling procedures for Pacific Northwest vertebrates