http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
U.S. Citizenship and Immigration Services
U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, U.S. Department of Education.
Title from title screen (viewed on Apr. 16, 2008).
Mode of access: Internet from USCIS web site. Address as of 4/16/08: http://www.uscis.gov/files/nativedocuments/M-618.pdf; current access available via PURL.