Policy theory and policy evaluation :  Concepts, knowledge, causes, and norms / 
Edited by Stuart S. Nagel. 
 - New York :  Greenwood Press,  1990. 
 - xxiv, 227 p. :  ill. ;  25 cm. 
 - (Contributions in political science) .
<br/><br/> "Prepared under the auspices of the Policy Studies Organization." 
<br/><br/>Includes bibliographical references (p. [205]-212) and indexes. 
<br/><br/><label>ISBN: </label>0313273561 (lib. bdg. : alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Policy sciences<br/>Evaluation research (Social action programs)