Protecting youths in an online world [electronic resource] : hearing before the Subcommittee on Consumer Protection, Product Safety, and Insurance of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eleventh Congress, second session, July 15, 2010.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2011.