TY  - BOOK
AU  - Ladd,Everett Carll
TI  - The american polity: the people and their government 
SN  - 0393960668
U1  - 320.973 
PY  - 1991///
CY  - New York
PB  - W. W. Norton
KW  - Estados Unidos
KW  - Política y gobierno
KW  - 1961-
ER  -