APA

United States, . (2012). Prerequisites for progress in Northern Ireland: hearing before the Commission on Security and Cooperation in Europe, One Hundred Twelfth Congress, second session, March 21, 2012. Washington: U.S. G.P.O.

Chicago

United States, . 2012. Prerequisites for progress in Northern Ireland: hearing before the Commission on Security and Cooperation in Europe, One Hundred Twelfth Congress, second session, March 21, 2012. Washington: U.S. G.P.O.

Harvard

United States, . (2012). Prerequisites for progress in Northern Ireland: hearing before the Commission on Security and Cooperation in Europe, One Hundred Twelfth Congress, second session, March 21, 2012. Washington: U.S. G.P.O.

MLA

United States, . Prerequisites for progress in Northern Ireland: hearing before the Commission on Security and Cooperation in Europe, One Hundred Twelfth Congress, second session, March 21, 2012. Washington: U.S. G.P.O. 2012.