Facts
- Author
- Andres Piquer
- Language
- Spanish
- Project Gutenberg No.
- 12840
- Released on Project Gutenberg
- July 7, 2004
- Bookshelves
- Philosophy & Ethics
- Subjects
- Knowledge, Theory of, Logic
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)