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Approaches for estimating critical loads of nitrogen and sulfur deposition for forest ecosystems on

Pardo, Linda H.
Newtown Square, PA : U.S. Dept. of Agriculture, Forest Service, Northern Research Station, [2010] 2010

A biological survey for the nation

National Research Council (U.S.). Committee on the Formation of the National Biological Survey.
Washington, D.C. : National Academy Press, 1993. 1993

Lessons identified from prior oversight of the EPA's geographic and national estuary programs

United States. Environmental Protection Agency. Office of the Inspector General, author.
[Washington, D.C.] : Office of Inspector General, U.S. Environmental Protection Agency, 2022. 2022

A new map of standardized terrestrial ecosystems of the conterminous United States

Reston, Va. : U.S. Geological Survey, 2009. 2009

A phase I inventory of current EPA efforts to protect ecosystems

[Washington, D.C.] : United States Environmental Protection Agency, Office of Water : Office of Wetlands, Oceans, & Watersheds [1995] 1995