TY  - BOOK
AU  - Ferrer Beltrán,Jordi
AU  - Ratti,Giovanni Battista
TI  - The logic of legal requirements: essays on defeasibility 
SN  - 9780199661640
U1  - 340.1 
PY  - 2012///
CY  - Oxford
PB  - Oxford University Press
KW  - Law
KW  - Philosophy
ER  -