TY  - BOOK
AU  - Piquer,Andres
TI  - Logica
AV  - BC 
PY  - 2004///
PB  - Project Gutenberg
KW  - Knowledge, Theory of
KW  - Logic
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/12840
ER  -