- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1951
- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1928
- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1956
- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1951
- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1954
- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1951
- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1961
Toribio Pacheco
pdf
- Author: Porras Barrenechea Raúl
- Language: Spanish
- Year: 1928