Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency , Office of Emergency and Remedial Response, Office of Solid Waste and Emergency Response, U.S. Environmental Protection Agency[1992]OSWER directive
no. 9355.0-38
Office of Emergency and Remedial Response : Office of Solid Waste and Emergency Response, U.S. Environmental Protection Agency[1986]OSWER directive
9285.4-1