The presidency A to Z  : a ready reference encyclopedia 
/ ed. by Michael Nelson 
. - Washington  : Congressional quarterly , 1992
. - XIII-574 p.  : ill.  ; 24 cm. 
 - CQ's encyclopedia of American government  2 .
<br/><br/>Bibliogr. pp. 547-551. Index 
<br/><br/><label>ISBN: </label>9780871876676 0871876671 
<br/><br/><label>Source: </label> Don du CCA 
<br/><br/><label>Universal Decimal Class. No.: </label>342.511.002.