Dye, Thomas R.  <br/><br/>
Understanding public policy / 
by Thomas R. Dye 
 - 4th ed 
 - Englewood Cliffs, N.J.  Prentice-Hall  1981 
 - 401p. :  ill. ;  23cm 
<br/><br/>Includes bibliographies 
<br/><br/><label>ISBN: </label>0139362606 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Social policy.<br/>United States--Social conditions.