Program evaluation :  an introduction / 
David Royse ... [et al.]. 
 - 4th ed. 
 - Belmont, CA :  Thomson Brooks/Cole,  2006. 
 - xii, 428 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0534508278 (pbk.)  RM282.53 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human services--Evaluation.--United States