Education & Training
- PhD, Northwestern University, 1951
Parties, Politics, and Public Policy in America, 8th Edition. Congressional Quarterly, 1998.
The American Legislative Process: Congress and the States, 9th Edition. Prentice-Hall, 1997 (Co-authored with Morris S. Ogul).
American Democracy, 3rd Edition. Harper Collins 1990 (Co-authored with Henry Abraham, William Flanigan, Charles Jones, Morris Ogul, and John Spanier).
Congress and the American People, 3rd Edition. Prentice-Hall, 1989
American politics, legislative behavior, political parties and interest groups