United States. Government Printing Office. (2011). Keeping America informed: The U.S. Government Printing Office : 150 years of service to the nation. United States Government Printing Office.
Chicago-referens (17:e uppl.)United States. Government Printing Office. Keeping America Informed: The U.S. Government Printing Office : 150 Years of Service to the Nation. [Washington, District of Columbia]: United States Government Printing Office, 2011.
MLA-referens (9:e uppl.)United States. Government Printing Office. Keeping America Informed: The U.S. Government Printing Office : 150 Years of Service to the Nation. United States Government Printing Office, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.