- Author: Fidel Castro Ernesto Che Guevara Cristina Baeza Fernando Martínez Heredia Marta Blaquier Ascaño
- Language: Spanish
- Year: 1968
- Author: Alekséi N. Leontiev Justo Nicola Damián Pretel Martínez Isabel Monal
- Language: Spanish
- Year: 1968
- Author: R. H. Thouless (ed.)
- Language: Spanish
- Year: 1967
- Author: Felipe Martínez Arango
- Language: Spanish
- Year: 1968
- Author: I.G. Petrovsky
- Language: Spanish
- Year: 1960