United States Code, 2012 Edition, Supplement 2, V. 3, Title 43, Public Lands to Title 54, National Park Service and Related Programs, Popular Names, Tables, and Index
United States Code, 2012 Edition, Supplement 2, January 3, 2013 to January 5, 2015, V. 2, Title 21, Food and Drugs, to Title 42, The Public Health and Welfare