TY  - BOOK
AU  - Butler,David
AU  - Bogdanor,Vernon
TI  - Democracy and elections: electoral systems and their political consequences 
PY  - 1987///]
CY  - Cambridge [etc]
PB  - University Press
KW  - Política y gobierno
KW  - Política internacional
KW  - Europa
KW  - Parlamentos
ER  -