United States. National Archives and Records Administration.
United States. General Accounting Office
John Dumbrell
Congressional Information Service
Gregory J. Wawro
U. S. Congress
Joseph Nevins
United States. Department of Labor.
Jeffrey Richelson
Dennis E. Keller
Unknown Author
U.S. Customs Service
Theresa Baginski
Edward Timperlake
Heather Lehr Wagner