Climate change and the Arctic : new frontiers of national security : hearing before the Committee on Foreign Affairs, House of Representatives, One Hundred Eleventh Congress, first session, March 25, 2009
Washington : U.S. Government Printing Office, 2009. Washington, DC : For sale by the Superintendent of Documents, U.S. Government Printing Office [Getzville, New York] : William S. Hein & Company, [2016]