Polsby, Nelson W <br/><br/>
How Congress evolves : social bases of institutional change 
Nelson W. Polsby 
 - Oxford  Oxford University Press  c2004 
 - xiv, 257 p. : ill. ; 24 cm 
<br/><br/> Includes bibliographical references (p. 171-250) and index 
<br/><br/><label>ISBN: </label>9780195182965 
<br/><br/><label>Subjects--Topical Terms: </label><br/>United States. Congress. House - History - 20th century
<br/><br/><label>Dewey Class. No.: </label>328.73072 POL