- Lichtheim, George3
- Askol'dov, Sergei Alekseevich2
- Cole, George Douglas Howard2
- Kautsky, Karl2
- Lenin, Vladimir Il'ich2
- Bahro, Rudolf1
- Bell, Daniel1
- Bernstein, Eduard1
- Bilimovich, Aleksandr Dmitrievich1
- Boettke, Peter J.1
- Bukharin, Nikolaĭ1
- Burnham, James1
- Buttinger, Joseph1
- Carr, Barry1
- Chamberlin, William Henry1
- Ciołkosz, Adam1
- Ciołkoszowa, Lidia1
- Crossman, R. H. S.1
- Dan, F.1
- David, F.1