Barr Arvil S <br/><br/>
Educational research and appraisal 

 - Chicago  J.B. Lippincott Company  1953 
 - vii,362p 
 - Lippincott Series In Education .
<br/><br/><label>Source: </label>TextBook 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research-Education