Rossi, Peter Henry. <br/><br/>
Evaluation: a systematic approach / 
by Peter H. Rossi, Howard E. Freeman. 
 - 5th ed. 
 - Newbury Park, Calif. :  Sage,  1993. 
 - xii, 488 p. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0803944586 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs).