Ross, Robert S. <br/><br/>
American National Goverment :  institution, policy, and participation. 

 - 4th ed. 
 - Boston :  Mc Graw Hill,  1996. 
 - xvii,394 p.  ill.  23 cm. 
<br/><br/>includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1561344095 
<br/><br/><label>Dewey Class. No.: </label>973 ROS