APA (7th ed.) Citation

(2011). National Aquatic Resource Surveys: An update. United States Environmental Protection Agency.

Chicago Style (17th ed.) Citation

National Aquatic Resource Surveys: An Update. [Washington, D.C.]: United States Environmental Protection Agency, 2011.

MLA (9th ed.) Citation

National Aquatic Resource Surveys: An Update. United States Environmental Protection Agency, 2011.

Warning: These citations may not always be 100% accurate.