Levels and trends of mortality since 1950 :    a joint study by the United Nations and the World Health Organization. 

 - New York :    United Nations, Dept. of International Economic and So cial Affairs,    1982. 
 - xii, 177 p. :    ill. ;    28 cm. 
<br/><br/>  "ST/ESA/SER.A/74." 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mortality.<br/> Mortality -- Developing countries.
<br/><br/><label>Dewey Class. No.: </label>304.64