1. The Endangered Species Act
2. U.S. Environmental Protection Agency.Guidelines for Ecological Risk Assessment; EPA 630/R-95/002F, Washington, DC,1998.
3. U.S. Environmental Protection Agency.Decisions of the Ecological, Fate, and Effects Task Force; Memorandum from Linda J. Fisher, Assistant Administrator, Office of Pesticides and Toxic Substances, to Douglas Campt, Director, Office of Pesticide Programs, Washington, DC,1992.