Mad cow disease : are our precautions adequate? : hearing before the Subcommittee on Consumer Affairs, Foreign Commerce, and Tourism of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Seventh Congress, first session, April 4, 2001.
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Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2004.
