Kratochwell Thomas R Ed. <br/><br/>
Single subject research    strategies for evalution change 

 - New York  Academic Press USA      1978 
 - xx,316p.  cm. 
<br/><br/><label>Standard No.: </label>80,105 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PSYCHOLOGY
<br/><br/><label>Dewey Class. No.: </label>S:2:6, L8