TY  - BOOK
AU  - Coyle, David Cushman
TI  - The United States political system
PY  - 1954///
CY  - New York : 
PB  - A Signet Key Book, 
KW  - POLITICA
KW  - DOCTRINAS POLITICAS
KW  - ESTADOS UNIDOS DE AMERICA
KW  - SISTEMAS POLITICOS
ER  -