Source of difference in school achievement / 
Alan Brimer... [et a l.]. 
 - Imp. ed. 
 - Windsor, Berks :  NFER Publishing Co.,  c1978. 
 - xx, 208 p. :  ill. ;  21cm. 
<br/><br/>Includes bibliographical references (p.203-206). 
<br/><br/><label>ISBN: </label>0856331554 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Evaluation.
<br/><br/><label>Dewey Class. No.: </label>371.331