Guba, Egon G. <br/><br/>
Effective Evaluation / 
by  Egon G. Guba. 
 - San Francisco :  Jossey-Bass Publishers,  c1981. 
 - xxi, 423 p. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0875894933 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation.<br/>Evaluation-Methodology.
<br/><br/><label>LC Class. No.: </label>AZ  / 191  / G8