- Author: Trotsky Leon, Siegel Paul N.
- Language: English
- Year: 1977
- Author: Leon Trotsky
- Language: English
- Year: 1975
- Author: Leon Trotsky
- Language: English
- Year: 1973
- Author: Leon Trotsky
- Language: English
- Year: 1973
- Author: Leon Trotsky
- Language: English
- Year: 1975
- Author: Leon Trotsky
- Language: English
- Year: 1974
- Author: Leon Trotsky
- Language: English
- Year: 1977
- Author: Leon Trotsky
- Language: English
- Year: 2002
- Author: Leon Trotsky
- Language: English
- Year: 1976
- Author: Leon Trotsky
- Language: English
- Year: 1974