27 December 2011 | Publisher: United States Bureau of Citizenship and Immigration Services | Document type: Thematic Guidelines
21 March 2009 | Publisher: United States Bureau of Citizenship and Immigration Services | Document type: Thematic Guidelines
5 December 2002 | Publisher: United States Bureau of Citizenship and Immigration Services | Document type: Legal Articles/Analyses/Commentaries
7 December 2000 | Publisher: United States Bureau of Citizenship and Immigration Services | Document type: Legal Articles/Analyses/Commentaries
10 December 1998 | Publisher: United States Bureau of Citizenship and Immigration Services | Document type: Legal Articles/Analyses/Commentaries
26 May 1995 | Publisher: United States Bureau of Citizenship and Immigration Services | Document type: Legal Articles/Analyses/Commentaries