APA

United States, United States, . (2016). Oversight of the implementation of the President's executive order on improving chemical facility safety and security: hearing before the Committee on Environment and Public Works and Health, Education, Labor and Pensions, United States Senate, One Hundred Thirteenth Congress, second session, December 11, 2014. Washington: U.S. Government Publishing Office.

Chicago

United States, United States, . 2016. Oversight of the implementation of the President's executive order on improving chemical facility safety and security: hearing before the Committee on Environment and Public Works and Health, Education, Labor and Pensions, United States Senate, One Hundred Thirteenth Congress, second session, December 11, 2014. Washington: U.S. Government Publishing Office.

Harvard

United States, United States, . (2016). Oversight of the implementation of the President's executive order on improving chemical facility safety and security: hearing before the Committee on Environment and Public Works and Health, Education, Labor and Pensions, United States Senate, One Hundred Thirteenth Congress, second session, December 11, 2014. Washington: U.S. Government Publishing Office.

MLA

United States, United States, . Oversight of the implementation of the President's executive order on improving chemical facility safety and security: hearing before the Committee on Environment and Public Works and Health, Education, Labor and Pensions, United States Senate, One Hundred Thirteenth Congress, second session, December 11, 2014. Washington: U.S. Government Publishing Office. 2016.