APA (7th ed.) Citation

United States. Environmental Protection Agency. Office of Policy, Planning, and Evaluation. (1992). Biological populations as indicators of environmental change. Office of Policy, Planning, and Evaluation, U.S. Environmental Protection Agency.

Chicago Style (17th ed.) Citation

United States. Environmental Protection Agency. Office of Policy, Planning, and Evaluation. Biological Populations as Indicators of Environmental Change. Washington, DC: Office of Policy, Planning, and Evaluation, U.S. Environmental Protection Agency, 1992.

MLA (9th ed.) Citation

United States. Environmental Protection Agency. Office of Policy, Planning, and Evaluation. Biological Populations as Indicators of Environmental Change. Office of Policy, Planning, and Evaluation, U.S. Environmental Protection Agency, 1992.