Biological criteria
Subtitle: state development and implementation efforts.
Contributors: United States. Environmental Protection Agency. Office of Water.
Publisher: U.S. Environmental Protection Agency
Published: 1991
Place of publication: Washington, D.C
Language: eng
Format: Microform
Number of pages: 37
Subjects: Water quality.; Water -- Pollution -- Law and legislation.; Water quality management.
Notes: "EPA-440/5-91-003"--Cover.

"Office of Water."

"July 1991."

Includes bibliographical references.

Microfiche. Washington, D.C. : Superintendent of Documents, Government Publications Office, 1993. 1 microfiche : negative ; 11 x 15 cm.

s 1993 dcu n b.