Cover Image

Watershed ecological risk assessment.

Bibliographic Details
Corporate Author: United States. Environmental Protection Agency. Office of Water
Format: Government Document Book
Language:English
Published: [Washington, D.C.?] : U.S. Environmental Protection Agency, Office of Research and Development, Office of Water, [1997]
Subjects:
Ecological risk assessment > United States.
Valley ecology > United States.
Description
Item Description:Shipping list number: 97-0313-P.
"April 1997"--P. [4] of cover.
"EPA/822/F-97-002"--P. [4] of cover.
Physical Description:1 portfolio (3 sheets, 4 folded sheets) : illustrations, maps ; 31 cm.