• 4 International relations
• 2 Relations
• 1 Collected works
• 1 Detente
• 1 Economic assistance
• 1 Economic conditions
• 1 Economic history
• 1 International economic relations
• 1 Libertarianism
• 1 Politics and government

• 2 American Council on Germany
• 2 Atlantik-Brücke
• 2 Cato Institute
• 1 American-German Conference
• 1 American-German Conference on East-West Tensions
• 1 Bangladesh Institute of Law and International Affairs
• 1 Council on Foreign Relations
• 1 Finland. Ulkoasiainministeriö
• 1 Foreign Policy Association
• 1 Foundation for Foreign Affairs
• 1 Fundación Andina
• 1 Georgetown University. Center for Strategic and International Studies
• 1 Gesellschaft zur Verbreitung Wissenschaftlicher Kenntnisse
• 1 Institut für Internationale Beziehungen
• 1 Istituto per le relazioni tra l'Italia e i paesi dell'Africa, America Latina e Medio Oriente
• 1 Libertarian Review Foundation
• 1 New Zealand. Department of External Affairs
• 1 New Zealand. Ministry of Foreign Affairs
• 1 Nihon Kokusai Mondai Kenkyūjo
• 1 United States. Department of State. Bureau of Public Affairs

• 17 English
• 2 German
• 2 Spanish
• 1 Finnish
• 1 French
• 1 Italian
• 1 Japanese
• 1 Swedish

• 11 United States
• 2 Europe
• 2 Germany (West)
• 2 Japan
• 2 New Zealand
• 1 Argentina
• 1 Bangladesh
• 1 Developing countries
• 1 Finland
• 1 Germany (East)
• 1 Italy
• 1 Latin America
• 1 Soviet Union
• 1 Venezuela

• 15 Periodicals
• 1 Congresses

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