TY  - BOOK
AU  - Byers, Michael
TI  - Custom, power and the power of rules:  : international relations and customary international law 
SN  - 0521 63408 3
U1  - 341 
PY  - 1999///
CY  - Cambridge, England; New York
PB  - Cambridge University Press
KW  - DERECHO INTERNACIONAL
KW  - PODER
KW  - RELACIONES INTERNACIONALES
ER  -