- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)31
- Héderváry, Claire de3
- American Trade Union Delegation to the Soviet Union1
- Anstey, Edgar1
- Bennigsen, Alexandre1
- Brown, Timothy Scott1
- Connor, Walter1
- Conquest, Robert1
- Elton, Arthur1
- Freeman, Joseph1
- Gordon, Manya1
- Hobsbawm, E. J.1
- Kemény, István1
- Lipski, Jan Józef1
- Politzer, Patricia1
- Schwarz, Solomon M.1
- Smith, Andrew1
- Teague, Elizabeth1
- Therborn, Göran1
- Thompson, E. P.1