APA

United States, . (2015). Ukraine's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, first session, May 8, 2013. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2015. Ukraine's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, first session, May 8, 2013. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2015). Ukraine's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, first session, May 8, 2013. Washington: U.S. Government Publishing Office.

MLA

United States, . Ukraine's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, first session, May 8, 2013. Washington: U.S. Government Publishing Office. 2015.