APA

United States, . (2015). Switzerland's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, second session, February 25, 2015. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2015. Switzerland's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, second session, February 25, 2015. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2015). Switzerland's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, second session, February 25, 2015. Washington: U.S. Government Publishing Office.

MLA

United States, . Switzerland's leadership of the OSCE: hearing before the Commission on Security and Cooperation in Europe, One Hundred Thirteenth Congress, second session, February 25, 2015. Washington: U.S. Government Publishing Office. 2015.