A barrier panel to prevent the upstream migration of fish
By: David E. Babb
Contributors: United States.  Bureau of Land Management.  Portland Service Center
Series: Technical note / U.S. Bureau of Land Management -- 173; Technical note (U.S. Bureau of Land Management) -- 173.
Publisher: U.S Bureau of Land Management, Portland Service Center
Published: 1973
Place of publication: Portland, Or
Language: eng
Subjects: Fishes; Migration; Prevention
Notes: "July 2, 1973."

Bibliography: p. 6.