1. Technical Guidance for Hazards Analysis;U.S. Environmental Protection Agency,1987
2. National Research Council. Emergency and Continuous Exposure Guidance Levels for Selected Air-borne Contaminants, Vols. 4 and 5. National Academy Press, Washington, DC.
3. Telephone conversation with Daryl Dargitz, WSMC Safety (VAFB), on 4 August, 1988.
4. Promoting Safer Highway Routing of Ultrahazardous Cargoes: DOT Oversight;Committee on Government Operations;Thirty-First Report by the Committee on Government Operations together with Additional Views,1987