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- Language: Spanish
- Year: 2013
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- Year: 2001
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- Language: Spanish
- Year: 2013
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- Language: Spanish
- Year: 1995
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- Language: Spanish
- Year: 2002
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- Language: Spanish
- Year: 1986
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- Language: Spanish
- Year: 1986
- Author: Manuel García Morente
- Language: Spanish
- Year: 1976
- Author: Roger Garaudy
- Language: Spanish
- Year: 1973
- Author: Herbert Frey
- Language: Spanish
- Year: 2007