Evaluation studies :  Review annual / 
edited by Howard E.Freeman 
 - London :  Sage publications ;  1981 
 - 748 p. :  Ill. ;  20 cm. 
<br/><br/> Vol.6 
<br/><br/><label>ISBN: </label>0803916566 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation techniques
<br/><br/><label>Dewey Class. No.: </label>300.18  / EVA N81E