Park waters in peril
By: National Parks and Conservation Association.
Contributors: National Parks and Conservation Association.
Publisher: The Association
Published: 1993
Place of publication: Washington, D.C
Language: eng
Number of pages: 126
Subjects: Water quality -- United States.; Water-supply -- United States.; National parks and reserves -- United States.; Water quality -- United States -- Case studies.; Water-supply -- United States -- Case studies.
Notes: Includes bibliographical references (p. 125-126).
"February 1993."