Retherford, Robert D. <br/><br/>
Intelligence and family size reconsidered / 
Robert D. Retherford, William H. Sewell. 
 - Honolulu :  East-West Population Institute,  1988 
 - 40 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intelligence levels--Social aspects.<br/>Intelligence levels--Economic aspects.<br/>Family size.