United States. Environmental Protection Agency. (2000). Ecological risk assessment: Federal guidelines. Rockville, Ma.: Government Institutes.
Chicago Style CitationUnited States. Environmental Protection Agency. Ecological Risk Assessment: Federal Guidelines. Rockville, Ma.: Government Institutes, 2000.
MLA CitationUnited States. Environmental Protection Agency. Ecological Risk Assessment: Federal Guidelines. Rockville, Ma.: Government Institutes, 2000.
Warning: These citations may not always be 100% accurate.