APA

United States, . (2016). Global challenges, U.S. national security, strategy, and defense organization: hearings before the Committee on Armed Services, United States Senate, One Hundred Fourteenth Congress, first session, January 21, 27, 29; October 22, 2015. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2016. Global challenges, U.S. national security, strategy, and defense organization: hearings before the Committee on Armed Services, United States Senate, One Hundred Fourteenth Congress, first session, January 21, 27, 29; October 22, 2015. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2016). Global challenges, U.S. national security, strategy, and defense organization: hearings before the Committee on Armed Services, United States Senate, One Hundred Fourteenth Congress, first session, January 21, 27, 29; October 22, 2015. Washington: U.S. Government Publishing Office.

MLA

United States, . Global challenges, U.S. national security, strategy, and defense organization: hearings before the Committee on Armed Services, United States Senate, One Hundred Fourteenth Congress, first session, January 21, 27, 29; October 22, 2015. Washington: U.S. Government Publishing Office. 2016.