Political parties, interest groups, and public policy : group influence in American politics /
Dennis S. Ippolito, Thomas G. Walker.
- Englewood Cliffs, N.J. : Prentice-Hall, c1980.
- x, 431 p. : ill. ; 24 cm.
Includes bibliographical references and index.
0136843573 : $12.95
79016057
Political parties--United States. Pressure groups--United States.