Policy theory and policy evaluation: concepts, knowledge, causes and norms 
edited by Stuart S. Nagel 
 - Delhi  Greenwood  1990 
 - 227p. 
<br/><br/> Bibl.p.205-12, 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs)<br/>Policy sciences
<br/><br/><label>Dewey Class. No.: </label>B3 N131p