Title from main v. title screen (viewed on Apr. 10, 2008).
"March 2, 2001."
Mode of access: Internet from the Northwest Power and Conservation Council web site. Addresses as of 4/10/08: http://www.nwcouncil.org/library/isab/isab2001-1.pdf (main v.), http://www.nwcouncil.org/library/isab/isab2001-1a.pdf (executive summary); current access available via PURLs.