The hollow core :  private interests in national policy making / 
John P. Heinz ... [et al.]. 
 - Cambridge, Mass. :  Harvard University Press,  1993. 
 - xix, 450 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. [427]-439) and index. 
<br/><br/><label>ISBN: </label>0674405250 (acidfree paper) 
<br/><br/><label>LCCN: </label>92027361  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lobbying--United States.<br/>Pressure groups--United States.<br/>Agriculture and state--Decision making.--United States<br/>Energy policy--Decision making.--United States<br/>Medical policy--Decision making.--United States<br/>Labor policy--Decision making.--United States
<br/><br/><label>LC Class. No.: </label>JK1118  / .H55 1993 
<br/><br/><label>Dewey Class. No.: </label>324/.4/0973  / HEI