(2012). Citizenship, naturalization, immigration, and alien registration laws (2012 ed.). Central Book Supply.
Chicago-referens (17:e uppl.)Citizenship, Naturalization, Immigration, and Alien Registration Laws. 2012 ed. Quezon City: Central Book Supply, 2012.
MLA-referens (9:e uppl.)Citizenship, Naturalization, Immigration, and Alien Registration Laws. 2012 ed. Central Book Supply, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.