Authors: united states (sorted by release date)
- United States. Commission to the Madrid Exposition (1892- ) - 11 feb 2012
- Library of Congress. Division of Bibliography - 11 gen 2012
- United States. Department of the Interior - 4 nov 2011
- United States. Marine Mammal Commission - 15 ago 2011
- United States. Department of Education - 15 ago 2011
- United States. Work Projects Administration - 4 mag 2011
- Van Buren, Martin 1782-1862 22 apr 2011
- United States. Central Intelligence Agency - 11 apr 2011
- Plattsburgh Barracks (N.Y.) - 10 nov 2010
- Girl Scouts of the United States of America - 20 set 2010
- United States. Circuit Court (Massachusetts) - 27 feb 2010
- United States. Supreme Court - 27 feb 2010
- United States. Children's Bureau - 31 dic 2009
- United States. Congress. House. Committee on Homeland Security - 8 dic 2009
- United States. Bureau of Animal Industry - 22 ott 2009
- United States. Executive Office of the President - 21 giu 2009
- Grant, Ulysses S. (Ulysses Simpson) 1822-1885 18 mag 2009
- United States. Congress. Senate - 28 ott 2008
- United States. Office of Civil Defense - 14 ott 2008
- United States. Office of Strategic Services - 4 ago 2008
- United States Rubber Company - 1 ago 2008
- United States. Federal Bureau of Investigation - 5 giu 2008
- United States. Air Force - 1 giu 2008
- United States. Department of Defense - 15 mag 2008
- United States. Army. American Expeditionary Forces - 17 apr 2008
