TY  - BOOK
AU  - Hart, H
TI  - The concept of Law 
SN  - 0 19 876005 1
U1  - SB 719 
PY  - 1961///
CY  - Oxford
PB  - Clarendon Press
KW  - DERECHO
KW  - DONACION BENADAVA
N1  - Sala Santiago Benadava
ER  -