United States Environmental Protection Agency Office of Water Planning and Standards Monitoring and Data Support Division. (1975). Fish kills caused by pollution in 1975. Environmental Protection Agency, Office of Water Programs, Division of Applied Technology, Technical Data and Information Branch.
Παραπομπή σε μορφή Chicago (17η εκδ.)United States Environmental Protection Agency Office of Water Planning and Standards Monitoring and Data Support Division. Fish Kills Caused by Pollution in 1975. Washington, D.C.: Environmental Protection Agency, Office of Water Programs, Division of Applied Technology, Technical Data and Information Branch, 1975.
Παραπομπή σε μορφή MLA (9th εκδ.)United States Environmental Protection Agency Office of Water Planning and Standards Monitoring and Data Support Division. Fish Kills Caused by Pollution in 1975. Environmental Protection Agency, Office of Water Programs, Division of Applied Technology, Technical Data and Information Branch, 1975.