[Washington, D.C.] : U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response : Chemical Emergency Preparedness and Prevention Office, [1998]
Also available via Internet from the EPA web site (PDF file only). Address as of 5/4/99: http://www.epa.gov/ceppo/pubs/longplnf.pdf ; current access is available via PURL.
Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., 1999 2 microfiches : negative.