How to identify wetlands.
Contributors: Oregon. Dept. of State Lands Wetlands Program.
Series: Just the facts -- 4.
Publisher: Oregon Dept. of State Lands, Wetlands Program
Published: 2004
Place of publication: Salem, OR
Language: eng
Subjects: Landscape assessment -- Oregon.; Wetland management -- Oregon.
Notes: Title from caption.

"Revised November 2004."

Also available online at the Oregon Documents Repository.