- Author: Nicola Abbagnano Giovanni Fornero
- Language: Italian
- Year: 1998
- Author: Nicola Abbagnano Giovanni Fornero
- Language: Italian
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- Language: Italian
- Year: 2012
- Author: Nicola Abbagnano Giovanni Fornero
- Language: Italian
- Year: 2014
- Author: Nicola Abbagnano Giovanni Fornero
- Language: Italian
- Year: 2012
- Author: Nicola Abbagnano Giovanni Fornero
- Language: Italian
- Year: 1998