Ferry,Benoit Singh,Susheela <br/><br/>
Biological and traditional factors that influence fertility: results from WFS surveys / Susheela Singh and Benoit Ferry 

 - London  World fertility survey  1984 
 - 102p. 
 - WFS comparative studies, cross national summaries .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography<br/>Fertility - survey