TY  - BOOK
AU  - Ladd,Everett Carll
TI  - American political parties: social change and political response 
SN  - 0393099644
PY  - 1970///
CY  - New York
PB  - Norton
KW  - Political parties
KW  - United States
KW  - History
N1  - Includes bibliographical references
ER  -