Spitzer, Robert J. <br/><br/>
The presidency and public policy   : the four arenas of presidential power  
/ Robert J. Spritzer 
. - Alabama  : The University of Alabama Press, 1983
. - XIV-189 p.  ; 24 cm. 
<br/><br/>Bibliogr., index 
<br/><br/><label>ISBN: </label>0817301097 
<br/><br/><label>Source: </label> Don du CCA 
<br/><br/><label>Universal Decimal Class. No.: </label>342.51