U.S. Citizenship and Immigration Services. (2005). USCIS civics flash cards. U.S. Citizenship and Immigration Services.
Chicago Style (17th ed.) CitationU.S. Citizenship and Immigration Services. USCIS Civics Flash Cards. [Washington, D.C.]: U.S. Citizenship and Immigration Services, 2005.
MLA (9th ed.) CitationU.S. Citizenship and Immigration Services. USCIS Civics Flash Cards. U.S. Citizenship and Immigration Services, 2005.
Warning: These citations may not always be 100% accurate.