American government : freedom and power / Theodore J. Lowi, Benyamin Ginsberg

 Lowi, Theodore J.; Ginsberg, Benyamin;

New York : W. W. Norton , 2002

We the people :an introduction to American politics

 Lowi, Theodore J.; Ginsberg, Benyamin; Weir, Margaret,;

New York : : W. W. Norton , 2007