- Chiaureli, Mikhail1
- Ciano, Galeazzo1
- Communist International1
- Communist International (Comintern)1
- Czerwiński, Mieczysław1
- Dangerfield, Elma1
- Dansette, Adrien1
- Garner, Frank Harold1
- Gawlina, Józef Feliks1
- Gray, Alexander1
- Great Britain, Foreign and Commonwealth Office1
- Hegedüs, András1
- Hemar, Marian1
- Ivens, Joris1
- Jamar, K.1
- Karmen, Roman1
- Kautsky, Karl1
- Kemény, István1
- Kmitas, Jonas1
- Kogon, Eugen1