Johnson, Paul E. y otros. <br/><br/>
American Government:People, institutions, and Policies.   

 - 3ª  
 - Boston   Houghton Mifflin  1994 
 - 872 p. il.; 23 cm. 
 -   .
<br/><br/>  
<br/><br/><label>ISBN: </label>0395667143 
<br/><br/><label>Dewey Class. No.: </label>327  / J66a