United States. Environmental Protection Agency, Office Water, & Nonpoint Control Branch. (2008). Handbook for developing watershed plans to restore and protect our waters. U.S. Environmental Protection Agency, Office of Water, Nonpoint Source Control Branch.
Cytowanie według stylu Chicago (wyd. 17)United States. Environmental Protection Agency, Office Water, i Nonpoint Control Branch. Handbook for Developing Watershed Plans to Restore and Protect Our Waters. Washington, DC: U.S. Environmental Protection Agency, Office of Water, Nonpoint Source Control Branch, 2008.
Cytowanie według stylu MLA (wyd. 9)United States. Environmental Protection Agency, et al. Handbook for Developing Watershed Plans to Restore and Protect Our Waters. U.S. Environmental Protection Agency, Office of Water, Nonpoint Source Control Branch, 2008.