Environmental indicators of water quality in the United States.
Contributors: United States. Environmental Protection Agency. Office of Water.
Publisher: U.S. Environmental Protection Agency, Office of Water
Published: 1996
Place of publication: Washington, D.C
Language: eng
Number of pages: 25
Subjects: Water quality -- United States; Environmental indicators -- United States
Notes: Cover title.

"June 1996."

"EPA 841-R-96-002."

Includes bibliographical references (p. 23-25).