http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
U.S. Citizenship and Immigration Services Genealogy Program
U.S. Citizenship and Immigration Services
1 online resource (2 pages) : illustrations
Title from title screen (viewed January 15, 2016).
GPO Cataloging Record Distribution Program (CRDP).