Rossi, Peter Henry,  1921- <br/><br/>
Evaluation :  a systematic approach / 
Peter H. Rossi, Howard E. Freeman 
 - 4th ed. 
 - London :  Sage Publications ,  1989 
 - 496p. :  ill. ;  24 cm 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0803934890 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs)
<br/><br/><label>Dewey Class. No.: </label>361.61072