Abt, Clark C. Ed. <br/><br/>
Evaluation of social programs. 

 - London :  Sage,  1976. 
 - 503p. 
<br/><br/><label>ISBN: </label>0803907354 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Y:f  L6