Ecberg, Douglar Lee <br/><br/>
Intelligence and Race: the origins and dimensions of the I.Q. controversy  Douglas Lee Ecberg. 

 - New York  Praeger Publishers  1979 
 - xx, 275p., 22cm. 
<br/><br/><label>ISBN: </label>0-03-052556-x. 
<br/><br/><label>Dewey Class. No.: </label>159.922.4,  / E22I