Mayfly distribution as a water quality index
By: by [Calvin R. Fremling], Winona State College for the Water Quality Office, Environmental Protection Agency.
Contributors: Fremling, Calvin R., 1929-; United States. Environmental Protection Agency. Water Quality Office.
Series: Water pollution control research series
Publisher: [Environmental Protection Agency, Water Quality Office] for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1970
Place of publication: Washington
Language: eng
Number of pages: 39
Subjects: Water quality -- Standards -- Mississippi River Watershed.; Mayflies.
Notes: Bibliography: p. 35-39.
"16030 DQH 11/70."