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Search results for "national recreation"

Filters: Division on Earth and Life Studies DELS × 1999 1999 ×
Viewing 1 - 4 of 4 results by relevance

Downstream: Adaptive Management of Glen Canyon Dam and the Colorado River Ecosystem  (1999)

New Directions in Water Resources Planning for the U.S. Army Corps of Engineers  (1999)

New Strategies for America's Watersheds  (1999)

Perspectives on Biodiversity: Valuing Its Role in an Everchanging World  (1999)