Issues regarding the new NPS methodology used to evaluate the achievement of natural quiet restoration standards in Grand Canyon National Park : oversight hearing before the Subcommittee on National Parks and Public Lands of the Committee on Resources, House of Representatives, One Hundred Sixth Congress, first session, May 25, 1999, Washington, DC.

Bibliographic Details
Corporate Author:	United States. Congress. House. Committee on Resources. Subcommittee on National Parks and Public Lands (Author)
Format:	Government Document eBook
Language:	English
Published:	Washington : U.S. Government Printing Office, 1999 [i.e. 2000]
Subjects:	Airplanes > Arizona > Grand Canyon National Park > Noise > Government policy. Noise pollution > Government policy > Arizona > Grand Canyon National Park. Grand Canyon National Park (Ariz.) Legislative hearings.
Online Access:	https://purl.fdlp.govGPO/LPS4284

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