United States Congressional Serial Set, Serial No. 14699, House Document No. 3, V. 3-4, Budget of the United States, Analytical Perspectives and Historical Tables, 2002
United States Congressional Serial Set, Serial No. 14755, House Document No. 159, V. 3-4, Budget of U.S. Government, Analytical Perspectives and Historical Tables, 2003
United States Congressional Serial Set, Serial No. 14736, Senate Document No. 10, Semiannual Report of Architect of Capitol, October 1, 2001-March 31, 2002