http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
"A directory of contact information for national associations, foundations, and other nonprofit organizations in the United States and Canada containing mailing addresses, telephone numbers, web site addresses, fax numbers, and toll-free telephone numbers for national associations, private foundations, and other nonprofit organizations, including non-governmental organizations, political action committees, think tanks, and information clearinghouses"--1st edition.
Omnigraphics, Inc., Order Department, PO Box 625, Holmes, PA 19043