1. Collections
2. Council on Foreign Relations Records: Studies Department Series, Public Policy Papers, Department of Rare Books and Special Collections, Seeley Mudd Library, Princeton University (USA)
3. Fonds Jean Monnet, Fondation Jean Monnet pour l’Europe, Lausanne (CH)
4. Records of the Council on Foreign Relations, 1921–1951, Roosevelt Institute for American Studies, Middelburg (NL)
5. Princeton archives