The effectiveness of our nation's public alert system : hearing before the Subcommittee on Economic Development, Public Buildings, and Emergency Management of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Twelfth Congress, first session, December 13, 2011.

MLA

United States. The effectiveness of our nation's public alert system : hearing before the Subcommittee on Economic Development, Public Buildings, and Emergency Management of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Twelfth Congress, first session, December 13, 2011. Washington : U.S. G.P.O., 2012.

APA

United States. (2012). The effectiveness of our nation's public alert system : hearing before the Subcommittee on Economic Development, Public Buildings, and Emergency Management of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Twelfth Congress, first session, December 13, 2011. Washington : U.S. G.P.O..

Chicago

United States. The effectiveness of our nation's public alert system : hearing before the Subcommittee on Economic Development, Public Buildings, and Emergency Management of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Twelfth Congress, first session, December 13, 2011. Washington : U.S. G.P.O., 2012.