Retherford, Robert D. <br/><br/>
The changing sex differential in mortality / 
Robert D. Retherford 
 - Westport, Conn. :  Greenwood Press,  1975 
 - xi, 139 p. ;  21 cm. 
 - Studies in population and urban demography ;  no.1 .
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 127-134 
<br/><br/><label>ISBN: </label>0837178487 
<br/><br/><label>LCCN: </label>74-019808 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mortality--Sex differences