TY  - BOOK
AU  - Dworkin, Ronald
TI  - A matter of principle 
SN  - 0 19 825574 8
U1  - SB 1311 
PY  - 1986///
CY  - Oxford
PB  - Clarendon Press
KW  - CIENCIA POLITICA
KW  - DONACION BENADAVA
N1  - Sala Santiago Benadava
ER  -