GUTTENTAG (Marcia) and STRUENING (Elmer L) <br/><br/>
Handbook of evaluation research. 

 - London  Sage Publications  1975 
 - 736 
 -  2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research
<br/><br/><label>Dewey Class. No.: </label>001.4 GUTH