Issues regarding the new NPS methodology used to evaluate the achievement of natural quiet restoration standards in Grand Canyon National Park
Subtitle: Oversight ... first session, May 25, 1999, Washington, DC
Publisher: For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office
Published: 1999
Language: eng
Format: Unknown Binding
Number of pages: 141
ISBN-13: 9780160602207