Author/Creator
- United States. Central Intelligence Agency. Directorate of Intelligence111
- Jet Propulsion Laboratory (U.S.)61
- National Foreign Assessment Center (U.S.)26
- United Nations. Department of Economic and Social Affairs. Population Division19
- European Commission. Directorate-General for Energy and Transport15
- United States. National Aeronautics and Space Administration15
- United States. Immigration and Naturalization Service12
- United States. Environmental Protection Agency10
- United States. Central Intelligence Agency8
- National Dam Safety Program (U.S.)6
- United States. Equal Employment Opportunity Commission6
- Center for Advanced Study in the Visual Arts (U.S.)5
- Defense Acquisition University (U.S.)5
- Goddard Space Flight Center5
- U.S. Citizenship and Immigration Services5
- United States. Army. Signal Corps5
- United States. Department of Education5
- United States. Department of Health and Human Services5
- Center for Substance Abuse Prevention (U.S.)4
- Commission on the Bicentennial of the United States Constitution4