Preventing harm, protecting health : reforming CDC's environmental public health practices : hearing before the Subcommittee on Investigations and Oversight, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, second session, May 20, 2010.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2010.