APA

United States, United States, . (2010). National lakes assessment: a collaborative survey of the nation's lakes. Washington, D.C: U.S. Environmental Protection Agency, Office of Water and Office of Research and Development.

Chicago

United States, United States, . 2010. National lakes assessment: a collaborative survey of the nation's lakes. Washington, D.C: U.S. Environmental Protection Agency, Office of Water and Office of Research and Development.

Harvard

United States, United States, . (2010). National lakes assessment: a collaborative survey of the nation's lakes. Washington, D.C: U.S. Environmental Protection Agency, Office of Water and Office of Research and Development.

MLA

United States, United States, . National lakes assessment: a collaborative survey of the nation's lakes. Washington, D.C: U.S. Environmental Protection Agency, Office of Water and Office of Research and Development. 2010.