United States. Environmental Protection Agency. Office of Wetlands, Oceans, and Watersheds. (2001). Volunteer wetland monitoring: An introduction and resource guide. U.S. Environmental Protection Agency, Office of Water, Office of Wetlands, Oceans and Watersheds.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Office of Wetlands, Oceans, and Watersheds. Volunteer Wetland Monitoring: An Introduction and Resource Guide. Washington, DC: U.S. Environmental Protection Agency, Office of Water, Office of Wetlands, Oceans and Watersheds, 2001.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Wetlands, Oceans, and Watersheds. Volunteer Wetland Monitoring: An Introduction and Resource Guide. U.S. Environmental Protection Agency, Office of Water, Office of Wetlands, Oceans and Watersheds, 2001.