United States. Congress. Senate. Committee on Environment and Public Works. (2016). Examining the role of environmental policies on access to energy and economic opportunity: Hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Fourteenth Congress, second session, April 13, 2016. Washington: U.S. Government Publishing Office.

United States. Congress. Senate. Committee on Environment and Public Works. Examining the Role of Environmental Policies On Access to Energy and Economic Opportunity: Hearing Before the Committee On Environment and Public Works, United States Senate, One Hundred Fourteenth Congress, Second Session, April 13, 2016. Washington: U.S. Government Publishing Office, 2016.

United States. Congress. Senate. Committee on Environment and Public Works. Examining the Role of Environmental Policies On Access to Energy and Economic Opportunity: Hearing Before the Committee On Environment and Public Works, United States Senate, One Hundred Fourteenth Congress, Second Session, April 13, 2016. Washington: U.S. Government Publishing Office, 2016.